All R Solutions on Gang of Coders

Total of 1531 R Solutions

case_when in mutate pipe

Persistent warnings from earlier commands with RStudio

Essential skills of a Data Scientist

How to send an email with attachment from R in windows

R Email Sendmailr

Initializing data.frames()

Replace specific characters within strings

R Regex Replace Gsub String Substitution

How do you create a progress bar when using the "foreach()" function in R?

R Foreach Progress Bar

ggplot: remove lines at ribbon edges

Assigning NULL to a list element in R?

How do you convert POSIX date to day of year?

Get specific object from Rdata file

Passing list of named parameters to function?

How can I make a list of lists in R?

Is there a way to output text to the R console in color

R Colors Console Output Formatting

ggplot2: Is there a fix for jagged, poor-quality text produced by geom_text()?

Consistent width for geom_bar in the event of missing data

rank and order in R

R Sorting R Faq

Avoid wasting space when placing multiple aligned plots onto one page

How to control number of decimal digits in write.table() output?

R Excel Number Formatting Decimal Point Output Formatting

Why TRUE == "TRUE" is TRUE in R?

R Boolean Comparison Boolean Logic

Insert rows for missing dates/times

R Time Series Missing Data

R shiny: display "loading..." message while function is running

How to replace NaN value with zero in a huge data frame?

Add empty columns to a dataframe with specified names from a vector

Running R script from python

Make Frequency Histogram for Factor Variables

R Histogram Categorical Data

Error: unexpected symbol/input/string constant/numeric constant/SPECIAL in my code

Create a ranking variable with dplyr?

Reorder rows using custom order

Creating Classes in R: S3, S4, R5 (RC), or R6?

Simultaneously merge multiple data.frames in a list

R List Merge Dataframe R Faq

How and when should I use on.exit?

Raise to power in R

R Mathematical Expressions

R dplyr: rename variables using string functions

Regex R Rename Dplyr

How to send R markdown report in body of email?

R Email Knitr R Markdown

Column alignment in DT datatable

Cannot log-in to rstudio-server

R Macos Rstudio Server

Rotate switched facet labels in ggplot2 facet_grid

R Plot Ggplot2 Facet Grid

dev.hold, dev.flush and resizing windows

R Device Window Resize

Avoiding type conflicts with dplyr::case_when

R Dplyr Data Cleaning

add commas into number for output

How to stop emacs from replacing underbar with <- in ess-mode

How to properly document S4 class slots using Roxygen2?

Class R S4 Slot Roxygen2

What is R's multidimensional equivalent of rbind and cbind?

R Multidimensional Array Matrix Multiplication

How to source() .R file saved using UTF-8 encoding?

R File Io Encoding Utf 8 Internationalization

Aggregate a dataframe on a given column and display another column

R Aggregate Plyr Greatest N-per-Group

Plot 3D data in R

R inconsistency: why add=T sometimes works and sometimes not in the plot() function?

Java-R integration?

Java R Machine Learning Regression

When documenting in Roxygen: How do I make an itemized list in @details?

R Documentation Roxygen

Implementing standard software design patterns (focus on MVC) in R

R Design Patterns Pass by-Reference Reference Class

Make the background of a graph different colours in different regions

Normalizing y-axis in histograms in R ggplot to proportion

R Plot Ggplot2 Histogram

remove the last element of a vector

Is there a difference between the R functions fitted() and predict()?

How can I label points in this scatterplot?

R Label Point Scatter Plot

Specifying row names when reading in a file

R Csv Dataframe Rowname

Adding a new column to each element in a list of tables or data frames

How does one change the levels of a factor column in a data.table

changing title in multiplot ggplot2 using grid.arrange

R Ggplot2 Gridextra

Create dataframe from a matrix

R Matrix Dataframe

Creating a named list from two vectors (names, values)

R List Constructor Lapply Named

Error in contrasts when defining a linear model in R

Database R Statistics

Adjust plot title (main) position

Using .I to return row numbers with data.table package

Is it a good practice to call functions in a package via ::

R Scope Namespaces Scoping Qualified Name

Read Stata 13 file in R

DocumentTermMatrix error on Corpus argument

Get the mean across multiple Pandas DataFrames

Python R Numpy Pandas

Code chunk font size in Rmarkdown with knitr and latex

R Latex Knitr R Markdown

Get a list of the data sets in a particular package

best way to transpose data.table

Removing NA observations with dplyr::filter()

Conditionally Count in dplyr

How do I suppress row names when using DT::renderDataTable in R shiny?

Installing rgl on Ubuntu and Mac: X11 not found

R Linux Macos Rgl

Split violin plot with ggplot2

R Ggplot2 Violin Plot Ggproto

Emacs ESS Mode - Tabbing for Comment Region

Dealing with timestamps in R

R Time Timestamp

Remove legend ggplot 2.2

R Ggplot2 Legend

Update R using RStudio

R:how to get grep to return the match, rather than the whole string

Adding a column to a dataframe in R

Converting a data frame to xts

R Dataframe Coerce Xts Time Series

How to subtract months from a date in R?

Practical limits of R data frame

R Performance Dataframe Rcpp

Roxygen2 - how to properly document S3 methods

R Roxygen Roxygen2

lambda-like functions in R?

Select the first and last row by group in a data frame

R Dataframe Aggregate

How to round a data.frame in R that contains some character variables?

Pass a vector of variables into lm() formula

Colour points in a plot differently depending on a vector of values

R Colors Plot Gradient

ggplot2 pdf import in Adobe Illustrator missing font AdobePiStd

R Ggplot2 Adobe Illustrator

Why do I get "warning longer object length is not a multiple of shorter object length"?

Change timezone in a POSIXct object

How do I change a single value in a data.frame?

R Dataframe Cell

How to calculate the 95% confidence interval for the slope in a linear regression model in R

R Statistics Linear Regression Confidence Interval

Multiple functions in one .Rd file

R Documentation Package Roxygen Roxygen2

How to convert a data frame column to numeric type?

R Dataframe Type Conversion

Split data frame string column into multiple columns

R String Dataframe Split R Faq

How can I know if R is running on 64 bits versus 32?

R 64 Bit 32bit 64bit

Grouped bar plot in ggplot

R Ggplot2 Bar Chart Reshape Reshape2

Inverse of ggplotGrob?

Export a list into a CSV or TXT file in R

dplyr: lead() and lag() wrong when used with group_by()

Non-numeric Argument to Binary Operator Error in R

Setting document title in Rmarkdown from parameters

R R Markdown Pandoc

Deploying R shiny app as a standalone application

SparkR vs sparklyr

R Apache Spark Sparkr Sparklyr

R markdown link is not formatted blue when knitted to pdf

R Pdf Markdown R Markdown

Get the path of current script

ld: warning: text-based stub file are out of sync. Falling back to library file for linking

R Xcode Macos Rcpp Linker Warning

How to print R graphics to multiple pages of a PDF and multiple PDFs?

Graphics R Plot

Is there an R equivalent of the pythonic "if name == "main": main()"?

R: removing the last elements of a vector

R Vector Elements

controlling the output with RApacheOutputErrors

How do I save warnings and errors as output from a function?

R Error Handling Try Catch

How to install dependencies when using "R CMD INSTALL" to install R packages?

R Dependencies Package

plot.new has not been called yet

How to flatten a list to a list without coercion?

List R Standard Library Flatten Type Coercion

Grouping 2 levels of a factor in R

Number formatting axis labels in ggplot2?

Selecting columns in R data frame based on those not in a vector

R Dataframe Subset

inst and extdata folders in R Packaging

How to Reverse a string in R

Producing subscripts in R markdown

R Markdown Knitr Subscript R Markdown

How can I use Emacs ESS mode with R markdown?

R Emacs Ess R Markdown

What is the difference between <NA> and NA?

R Na Missing Data

Create an ID (row number) column

R Dataframe R Faq

Unable to install rJava in R 3.0 in Ubuntu 13.04

Java R Ubuntu Java Native-Interface Rjava

How can you read a CSV file in R with different number of columns

R Csv Import read.table Sparse Columns

Extract rows for the first occurrence of a variable in a data frame

Return row number(s) for a particular value in a column in a dataframe

R Numbers Dataframe Row

dplyr issues when using group_by(multiple variables)

R Group By Dplyr Compound Key

How to extract Month from date in R

Weird characters added to first column name after reading a toad-exported csv file

Unable to load rJava on R

How can I force a line break in rmarkdown's title?

select columns based on multiple strings with dplyr contains()

R Regex Dplyr Matching Multiple Matches

How can I add freehand red circles to a ggplot2 graph?

What exactly is a connection in R?

Replace values in a dataframe based on lookup table

R Dataframe Lookup

How to group by all but one columns?

Remove an entire column from a data.frame in R

When should I use setDT() instead of data.table() to create a data.table?

Correct syntax for mutate_if

Creating a Movie from a Series of Plots in R

Graphics Video R Movieclip Movies

How to do a data.table merge operation

R Merge data.table

Row names & column names in R

R Columnname Rowname

Organizing R Source Code

What ways are there to edit a function in R?

R Function Editing

Calculate correlation with cor(), only for numerical columns

YAML current date in rmarkdown

R Yaml Knitr R Markdown

Combine two data frames by rows (rbind) when they have different sets of columns

R Dataframe R Faq

Euclidean distance of two vectors

Range standardization (0 to 1) in R

Merge or combine by rownames

R Merge Dataframe

How to order a data frame by one descending and one ascending column?

R Sorting Dataframe

Proposing feature requests to the R Core Team

Use superscripts in R axis labels

Python interface for R Programming Language

Python R Rpy2 Pyrserve Pyper

How to annotate() ggplot with latex

Is there a better alternative than string manipulation to programmatically build formulas?

R Linear Regression

How to connect R with Access database in 64-bit Window?

R Ms Access Rodbc

heatmap with values (ggplot2)

How to solve the error " missing required header GL/gl.h" while installing the Package mvoutlier in R?

How to drop columns by name pattern in R?

Which version of R is running in my computer?

R Version Built In

Getting imported json data into a data frame

Json R Import Dataframe

Sum all values in every column of a data.frame in R

Write a data frame to csv file without column header in R

Simplest way to get rbind to ignore column names

Export data from R to Excel

Adjust Transparency (alpha) of stat_smooth lines, not just transparency of Confidence Interval

R Ggplot2 Transparency Alpha

Function not found in R doParallel 'foreach' - Error in { : task 1 failed - "could not find function "raster""

How to combine 2 plots (ggplot) into one plot?

R Graph Plot Ggplot2 Visualization

Loading .RData files into Python

How to add a cumulative column to an R dataframe using dplyr?

R Dataframe Dplyr

Remove rows conditionally from a data.table in R

Extract R-square value with R in linear models

Boolean operators && and ||

R Logical Operators Boolean Operations Or Operator And Operator

Save multiple ggplots using a for loop

R For Loop Ggplot2

list output truncated - How to expand listed variables with str() in R

R Dataframe Output Truncated

How to hold figure position with figure caption in pdf output of knitr?

R Knitr R Markdown

use first row data as column names in r

How to select columns in data.table using a character vector of certain column names?

How to control ordering of stacked bar chart using identity on ggplot2

What is the difference between mode and class in R?

Specify widths and heights of plots with grid.arrange

R Plot Ggplot2 Gridextra

customize ggplot2 axis labels with different colors

R Ggplot2 Geom Bar

ggmap Error: GeomRasterAnn was built with an incompatible version of ggproto

R Ggplot2 Ggmap Ggproto

Remove all of x axis labels in ggplot

R: Print list to a text file

Unpacking argument lists for ellipsis in R

List R Ellipsis Iterable Unpacking

Plotting time-series with Date labels on x-axis

Calculate AUC in R?

R Machine Learning Data Mining Auc

Extract matrix column values by matrix column name

R Matrix Subset

Remove rows in R matrix where all data is NA

ggplot2 avoid boxes around legend symbols

Replace contents of factor column in R dataframe

How to plot just the legends in ggplot2?

R Ggplot2 Igraph

Reshaping multiple sets of measurement columns (wide format) into single columns (long format)

R Reshape Tidyr Reshape2 R Faq

ggplot with 2 y axes on each side and different scales

R Ggplot2 R Faq

Merging multiple data.tables

R Join Merge data.table

Remove numbers from alphanumeric characters

suppress NAs in paste()

Subset rows in a data frame based on a vector of values

Fill and border colour in geom_point (scale_colour_manual) in ggplot

R Colors Ggplot2

Cut() error - 'breaks' are not unique

How do I change the NA color from gray to white in a ggplot choropleth map?

R Ggplot2 Maps Choropleth

Calculate cumulative sum (cumsum) by group

ggplot2 - The unit of size

Unlist a list of dataframes

mean() warning: argument is not numeric or logical: returning NA

How can I take pairwise parallel maximum between two vectors?

R - test if first occurrence of string1 is followed by string2

Replace characters from a column of a data frame R

R Replace Dataframe

dplyr: How to use group_by inside a function?

R Dplyr Tidyeval Nse

Error: XML Content does not seem to be XML | R 3.1.0

How do I open a script file in RStudio using an R command?

extracting standardized coefficients from lm in R

R Regression Lm Beta Standardized

Unimplemented type list when trying to write.table

R Dataframe write.table

Install a local R package with dependencies from CRAN mirror

R Dependencies Repository Packages Cran

Finding percentage in a sub-group using group_by and summarise

R Group By Dplyr

In R base plot, move axis label closer to axis

R Plot Axis Labels

What is the difference between cat and print?

Negation of %in% in R

R Match Negation

"Adding missing grouping variables" message in dplyr in R

How can I read command line parameters from an R script?

Command Line R Parameters

How to make R's 'raster' package distinguish between positive and negative rotation matrices in GeoTIFFs?

R Raster Image Rotation R Raster Geotiff

How to insert elements into a vector?

How to use an image as a point in ggplot?

R Ggplot2 Ggproto

Numeric comparison difficulty in R

R Floating Point Comparison Comparison Operators R Faq

Learning R. Where does one Start?

Parsing command line arguments in R scripts

Parsing R Command Line-Arguments

Why are these numbers not equal?

R Floating Point Floating Accuracy R Faq

Use of ggplot() within another function in R

Ordering of bars in ggplot

R Ggplot2 Bar Chart

Escaped Periods In R Regular Expressions

Find the index position of the first non-NA value in an R vector?

How to check if entire vector has no values other than NA (or NAN) in R?

What are Replacement Functions in R?

Possible to print more than 100 rows of a data.table?

R Printing data.table Options Output Formatting

preallocate list in R

Performance R List Memory

How to control number of minor grid lines in ggplot2?

Put whisker ends on boxplot

R Ggplot2 Boxplot

Sort matrix according to first column in R

Invalid multibyte string in read.csv

How to output text in the R console without creating new lines?

R Newline Rstudio Output Formatting

How do you order the fill-colours within ggplot2 geom_bar

R Graphics Ggplot2

Get date difference in years (floating point)

How to get the name of the calling function inside the called routine?

Date conversion from POSIXct to Date in R

Figure position in markdown when converting to PDF with knitr and pandoc

R Markdown Knitr Pandoc

What is the practical difference between data.frame and data.table in R

How to implement coalesce efficiently in R

Confusing error in R: Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : line 1 did not have 42 elements)

Find closest value in a vector with binary search

Replace missing values (NA) with most recent non-NA by group

How to add whitespace to an RMarkdown document?

R Markdown R Markdown

Conditionally replacing column values with data.table

the difference between doMC and doParallel in R

R Parallel Processing Domc Doparallel

Error - replacement has [x] rows, data has [y]

subtract value from previous row by group

R Dataframe Lag

Installing of SparkR

R Apache Spark Sparkr

ggplot2 increase space between legend keys

How do I get a list of built-in data sets in R?

R Dataset R Faq

How to draw a nice arrow in ggplot2

R Ggplot2 Arrows

What is the pandas equivalent of dplyr summarize/aggregate by multiple functions?

Python R Pandas Pandas Groupby Summarize

How to debug "contrasts can be applied only to factors with 2 or more levels" error?

R Regression Lm Glm R Faq

Is there a string formatting operator in R similar to Python's %?

Python R String Format

How do I delete rows in a data frame?

R Dataframe Row

Determine path of the executing script

R File Path Rscript R Faq

How do you convert dates/times from one time zone to another in R?

How can I count runs in a sequence?

Set R plots x axis to show at y=0

Include files R?

How to adjust the size of y axis labels only in R?

Convert integer to class Date

Looping over variables in ggplot

R For Loop Ggplot2 Tidyeval Nse

Fast vectorized merge of list of data.frames by row

R Performance List Merge Dataframe

R: Find the last dot in a string

State name to abbreviation

Looping over a Date or POSIXct object results in a numeric iterator

R Date For Loop Attributes Posixct

Techniques for finding near duplicate records

R Duplicate Data Duplicate Removal Fuzzy Comparison

ggplot2: histogram with normal curve

R Ggplot2 Curve

Concatenating Matrices in R

R Matrix Concatenation

cbind a dataframe with an empty dataframe - cbind.fill?

R Dataframe Cbind

Reading data from PDF files into R

Linux R Pdf Scrape Pdf Scraping

Find which season a particular date belongs to

How to add different lines for facets

R Ggplot2 Facet

R knitr: Possible to programmatically modify chunk labels?

reshape vs. reshape2 in R

R Reshape Reshape2

How to slice data from a middle index until the end without using `length` in R (like you can in python)?

How do you create vectors with specific intervals in R?

R Vector Intervals

Insert a row in a data.table

How can I `print` or `cat` when using parallel

R Io Parallel Processing

Plot data in descending order as appears in data frame

How can I drop unused levels from a data frame?

Is there a way to run R code from JavaScript?

Solution. How to install_github when there is a proxy

In RStudio/RMarkdown, how to setwd?

R Rstudio R Markdown

assign headers based on existing row in dataframe in R

R Dataframe Names

How to install R package from private repo using devtools install_github?

R Github Devtools

No non-missing arguments warning when using min or max in reshape2

R Aggregate Functions Reshape2

R Shiny set DataTable column width

preventing a chunk run in rmarkdown

R Knitr R Markdown

Count number of rows matching a criteria

rJava install error "JAVA_HOME cannot be determined from the Registry"

Java R Error Handling Rjava

How to import multiple .csv files at once?

Network chord diagram woes in R

R Data Visualization Igraph Graph Visualization Circos

rCharts nvd3 lineWithFocusChart Customization

Javascript R nvd3.js Rcharts

Override column types when importing data using readr::read_csv() when there are many columns

R Csv File Io Dataframe Dplyr

R summary() equivalent in numpy

Aggregate multiple columns at once

Variance Inflation Factor in Python

Python R Numpy Statistics Statsmodels

Difference between rbind() and bind_rows() in R

Code folding in bookdown

Javascript Html R Code Folding Bookdown

Expert R users, what's in your .Rprofile?

R Terminal Customization Rprofile

Add regression line equation and R^2 on graph

R Ggplot2 Linear Regression R Faq

How to change facet labels?

R Ggplot2 Symbols Facet Plotmath

Force R not to use exponential notation (e.g. e+10)?

R Number Formatting Options Scientific Notation Defaults

Turning off some legends in a ggplot

Split a vector into chunks

How can I remove all objects but one from the workspace in R?

Tools for making latex tables in R

Grouping functions (tapply, by, aggregate) and the *apply family

R Lapply Sapply Tapply R Faq

Filter rows which contain a certain string

How to assign from a function which returns more than one value?

R Return Value Variable Assignment Assign Multiple Results

What are the main differences between R data files?

R R Faq Rdata Rda

Change R default library path using .libPaths in Rprofile.site fails to work

R Rstudio R Faq Library Path

Append an object to a list in R in amortized constant time, O(1)?

R Performance List Append Big O

Find the day of a week

Where does R store packages?

How to plot two histograms together in R?

R Plot Histogram

Standardize data columns in R

R Normalization

Emulate ggplot2 default color palette

Increase number of axis ticks

Changing font size and direction of axes text in ggplot2

Display / print all rows of a tibble (tbl_df)

R Dplyr Options Display

How do I make a list of data frames?

R List Dataframe R Faq

Import text file as single character string

Use dynamic name for new column/variable in `dplyr`

Print string and variable contents on the same line in R

ggplot2 line chart gives "geom_path: Each group consist of only one observation. Do you need to adjust the group aesthetic?"

R Ggplot2 R Faq

Remove rows with all or some NAs (missing values) in data.frame

R Dataframe Filter Missing Data R Faq

Drop data frame columns by name

R Dataframe R Faq

Set margin size when converting from Markdown to PDF with pandoc

R Latex Markdown Knitr Pandoc

R - Markdown avoiding package loading messages

R Markdown Knitr Rstudio R Markdown

Extract a dplyr tbl column as a vector

R Dplyr Lazy Evaluation Collect

Calculating moving average

R Moving Average

Selecting only numeric columns from a data frame

How do you delete a column by name in data.table?

Installing R on Mac - Warning messages: Setting LC_CTYPE failed, using "C"

Macos R Installation

pull out p-values and r-squared from a linear regression

Use of ~ (tilde) in R programming Language

R R Faq R Formula

Label points in geom_point

R Plot Ggplot2 Labeling Ggrepel

remove kernel on jupyter notebook

R Jupyter Notebook

Reshaping data.frame from wide to long format

R Dataframe Reshape R Faq

Remove NA values from a vector

Explicitly calling return in a function or not

Why use purrr::map instead of lapply?

Numbering rows within groups in a data frame

R Dataframe R Faq

Can dplyr package be used for conditional mutating?

R If Statement Case When Dplyr

Understanding exactly when a data.table is a reference to (vs a copy of) another data.table

R Reference Copy data.table Assignment Operator

Change size of axes title and labels in ggplot2

Plot a legend outside of the plotting area in base graphics?

How to select a CRAN mirror in R

R Package Installation Cran

Load multiple packages at once

How to assign colors to categorical variables in ggplot2 that have stable mapping?

Mean per group in a data.frame

Relative frequencies / proportions with dplyr

R Group By Dplyr Frequency

"Correct" way to specifiy optional arguments in R functions

How do I replace NA values with zeros in an R dataframe?

What are the differences between "=" and "<-" assignment operators in R?

R Assignment Operator R Faq

How can I handle R CMD check "no visible binding for global variable" notes when my ggplot2 syntax is sensible?

How to suppress warnings globally in an R Script

Speed up the loop operation in R

Performance R Loops Rcpp R Faq

How to prevent ifelse() from turning Date objects into numeric objects

R Date Datetime If Statement

Determine the data types of a data frame's columns

R Dataframe Types

How to use R's ellipsis feature when writing your own function?

R Function Parameters Ellipsis Variadic

Error: could not find function ... in R

R Function Error Handling R Faq

Convert data.frame column to a vector?

R Dataframe Vector Type Conversion

Reasons for using the set.seed function

Access lapply index names inside FUN

R Lapply Names Indices

Show percent % instead of counts in charts of categorical variables

Does the ternary operator exist in R?

data.table vs dplyr: can one do something well the other can't or does poorly?

R data.table Dplyr

Fixing a multiple warning "unknown column"

Annotating text on individual facet in ggplot2

R Ggplot2 Facet Facet Wrap Facet Grid

How to convert a table to a data frame

Convert row names into first column

R Dataframe Col Rowname

Difference between R MarkDown and R NoteBook

R Rstudio Knitr R Markdown Rnotebook

session not created: This version of ChromeDriver only supports Chrome version 74 error with ChromeDriver Chrome using Selenium

R Selenium Google Chrome Selenium Chromedriver Rselenium

Remove duplicated rows

R Duplicates R Faq

For each row in an R dataframe

R Dataframe Rows

Order data frame rows according to vector with specific order

R Sorting Dataframe

How to find common elements from multiple vectors?

How to combine multiple conditions to subset a data-frame using "OR"?

R Conditional Dataframe

Capitalize the first letter of both words in a two word string

R String Title Case

Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2

R Merge Compare Rows Dataframe

How to split data into training/testing sets using sample function

Append value to empty vector in R?

R List Vector Append

Workflow for statistical analysis and report writing

R Statistics Data Visualization

What do hjust and vjust do when making a plot using ggplot?

Repeat each row of data.frame the number of times specified in a column

R Dataframe Replicate

Prevent row names to be written to file when using write.csv

What does .SD stand for in data.table in R

Call apply-like function on each row of dataframe with multiple arguments from each row

How to interpret dplyr message `summarise()` regrouping output by 'x' (override with `.groups` argument)?

R Dplyr Summarize

Force the origin to start at 0

R Plot Ggplot2 Axes

R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?

R Operators Variable Assignment Increment

How to remove all whitespace from a string?

R Regex String R Faq

Replace all 0 values to NA

Rotating and spacing axis labels in ggplot2

R Ggplot2 Label

Find file name from full file path

Fastest way to find second (third...) highest/lowest value in vector or column

What's the difference between `1L` and `1`?

Replacing NAs with latest non-NA value

R data.table Zoo R Faq

Problems installing the devtools package

R Package Devtools

Determine the number of NA values in a column

How to add a row to a data frame in R?

What does %>% mean in R

How to count TRUE values in a logical vector

Importing data from a JSON file into R

How to increase font size in a plot in R?

R memory management / cannot allocate vector of size n Mb

R Matrix Vector Memory Management R Faq

Convert data.frame column format from character to factor

R Dataframe Character R Faq

Remove columns from dataframe where ALL values are NA

R Apply Dataframe

Error in if/while (condition) {: missing Value where TRUE/FALSE needed

Aggregate / summarize multiple variables per group (e.g. sum, mean)

R Dataframe data.table Aggregate R Faq

Filter data.frame rows by a logical condition

R Dataframe Subset R Faq

Most underused data visualization

Graphics R Visualization Plot Ggplot2

Count number of occurences for each unique value

How do I clear only a few specific objects from the workspace?

What does %>% function mean in R?

R Syntax Dplyr Magrittr R Faq

Select first and last row from grouped data

Rotating axis labels in R

R Label Axis Plot

How to generate a number of most distinctive colors in R?

R Colors Palette Color Palette Colorbrewer

What's the difference between lapply and do.call?

R Functional Programming

Group by multiple columns in dplyr, using string vector input

Summarizing multiple columns with dplyr?

R Dplyr Aggregate

Determining memory usage of objects?

promise already under evaluation: recursive default argument reference or earlier problems?

Check for installed packages before running install.packages()

Add a common Legend for combined ggplots

R Ggplot2 Legend Gridextra

Select rows of a matrix that meet a condition

R Select Matrix Submatrix

Fastest way to replace NAs in a large data.table

R Performance Dataframe data.table

Add new row to dataframe, at specific row-index, not appended?

R Dataframe Insert

Remove plot axis values

R Plot Axis Labels

Is there a way to make R beep/play a sound at the end of a script?

How to format a number as percentage in R?

How to set size for local image using knitr for markdown?

Image R Markdown Knitr Pandoc

Installing R with Homebrew

Ignore outliers in ggplot2 boxplot

Remove 'a' from legend when using aesthetics and geom_text

R Ggplot2 Legend Aesthetics

Remove duplicated rows using dplyr

ggplot2 plot without axes, legends, etc

Returning multiple objects in an R function

Insert picture/table in R Markdown

Global variables in R

R Global Variables Variable Assignment

Painless way to install a new version of R?

R Upgrade Packages

Better explanation of when to use Imports/Depends

Add legend to ggplot2 line plot

R Ggplot2 Legend R Faq

Installing older version of R package

R Installation Version R Faq

increase legend font size ggplot2

How do you use "<<-" (scoping assignment) in R?

R Scoping Lexical Scope R Faq

How can we make xkcd style graphs?

How to wait for a keypress in R?

R Keypress Wait Readline Readkey

Why were pandas merges in python faster than data.table merges in R in 2012?

Python R Join data.table Pandas

In R, how to get an object's name after it is sent to a function?

How to delete a row by reference in data.table?

Extract a substring according to a pattern

How to organize large R programs?

R Package Conventions Code Organization Project Organization

Editing legend (text) labels in ggplot

R Text Ggplot2 Label

Equivalent of "throw" in R

R Error Handling

Is R's apply family more than syntactic sugar?

R and version control for the solo data analyst

Git Version Control R

data.frame rows to a list

List R Dataframe

How to use a variable to specify column name in ggplot

R Ggplot2 Tidyeval R Faq Nse

How to make execution pause, sleep, wait for X seconds in R?

R Animation Statistics

Using R to list all files with a specified extension

How to catch integer(0)?

R Error Handling Integer Try Catch

Assign multiple columns using := in data.table, by group

R Dataframe data.table Variable Assignment Colon Equals

Saving grid.arrange() plot to file

R Ggplot2 Gridextra

Dynamically select data frame columns using $ and a character value

R Dataframe R Faq

Should I use a data.frame or a matrix?

R Matrix Dataframe R Faq

R command for setting working directory to source file location in Rstudio

R Automation Working Directory

Scraping html tables into R data frames using the XML package

Html R Xml Parsing Web Scraping

grep using a character vector with multiple patterns

Adding a regression line on a ggplot

R Ggplot2 Regression Linear Regression

Only read selected columns

Omit rows containing specific column of NA

How to change line width in ggplot?

R Ggplot2 Line Plot

R apply function with multiple parameters

Using the rJava package on Win7 64 bit with R

Linking R and Julia?

R - Concatenate two dataframes?

R Dataframe Concatenation

How to save a data.frame in R?

How do I change the formatting of numbers on an axis with ggplot?

Scatterplot with marginal histograms in ggplot2

R Ggplot2 Histogram Scatter Plot

Is there a way to change the spacing between legend items in ggplot2?

R Ggplot2 Legend

ggplot does not work if it is inside a for loop although it works outside of it

R For Loop Ggplot2

Increasing (or decreasing) the memory available to R processes

R Memory Management Memory Leaks

Split code over multiple lines in an R script

Remove all special characters from a string in R?

Regex String R Character

Reorder bars in geom_bar ggplot2 by value

Pass a data.frame column name to a function

R Dataframe R Faq

facet label font size

Subset data frame based on multiple conditions

R Dataframe Subset

How to combine two lists in R

Select multiple columns in data.table by their numeric indices

Sum across multiple columns with dplyr

Format number as fixed width, with leading zeros

How to select the rows with maximum values in each group with dplyr?

R Dplyr Plyr Greatest N-per-Group

Order discrete x scale by frequency/value

R Ggplot2 R Faq

ggplot: How to increase spacing between faceted plots?

Apply a function to every row of a matrix or a data frame

R Function Matrix Apply Sapply

Error in plot.new() : figure margins too large, Scatter plot

R Plot Figure Margins

How to make graphics with transparent background in R using ggplot2?

R Graphics Transparency Ggplot2

How to convert variable (object) name into String

String R Object

Remove space between plotted data and the axes

How to create a density plot in matplotlib?

Python R Numpy Matplotlib Scipy

Replace a value in a data frame based on a conditional (`if`) statement

Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2

R Graph Ggplot2 Axes

Persistent invalid graphics state error when using ggplot2

Reorder levels of a factor without changing order of values

R Sorting Levels R Faq

How to succinctly write a formula with many variables from a data frame?

R Dataframe Glm Lm

Setting individual axis limits with facet_wrap and scales = "free" in ggplot2

R Ggplot2 Facet

How to convert a factor to integer\numeric without loss of information?

R Casting R Faq

Plot two graphs in same plot in R

R Plot Ggplot2 R Faq

Global and local variables in R

How to create empty data frame with column names specified in R?

Convert the values in a column into row names in an existing data frame

Why is rbindlist "better" than rbind?

R data.table Rbind Rbindlist

Can dplyr join on multiple columns or composite key?

Is the "*apply" family really not vectorized?

R Performance Loops Vectorization Apply

Extract every nth element of a vector

Overlaying histograms with ggplot2 in R

Reshape three column data frame to matrix ("long" to "wide" format)

R Matrix Dataframe Plyr Reshape

Count number of rows within each group

R Dataframe Aggregate R Faq

Using R to download zipped data file, extract, and import data

R Connection Zip R Faq

How should I deal with "package 'xxx' is not available (for R version x.y.z)" warning?

R Installation Repository Package R Faq

Convert UNIX epoch to Date object

How to change language settings in R

Warning message: In `...` : invalid factor level, NA generated

R Warnings R Faq

How to add elements to a list in R (loop)

How can I change the Y-axis figures into percentages in a barplot?

R Ggplot2 Bar Chart

Convert a matrix to a 1 dimensional array

Arrays R Matrix

Finding ALL duplicate rows, including "elements with smaller subscripts"

R Duplicates R Faq

What are the differences between vector and list data types in R?

Convert a row of a data frame to vector

R Vector Dataframe

read.csv warning 'EOF within quoted string' prevents complete reading of file

R Csv Eof read.table

Why can't R's ifelse statements return vectors?

R If Statement Vectorization R Faq

How to read data when some numbers contain commas as thousand separator?

How to force R to use a specified factor level as reference in a regression?

R Regression Linear Regression Categorical Data Dummy Variable

Scatterplot with too many points

How to delete multiple values from a vector?

How to reorder data.table columns (without copying)

Why does X[Y] join of data.tables not allow a full outer join, or a left join?

R Join data.table

Split comma-separated strings in a column into separate rows

R String Split R Faq

Split delimited strings in a column and insert as new rows

R Dataframe Reshape Data Manipulation Strsplit

Combine two or more columns in a dataframe into a new column with a new name

R Dataframe Multiple Columns R Faq

Getting LaTeX into R Plots

How can I view the source code for a function?

R Function R Faq

What is the difference between require() and library()?

R Package R Faq

Extracting numbers from vectors of strings

How to avoid warning when introducing NAs by coercion

R Parsing Casting Na

Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.9.4 or earlier

R String Sorting data.table Key

Controlling number of decimal digits in print output in R

R Precision Digits R Faq Output Formatting

Selecting data frame rows based on partial string match in a column

R Regex String Match Subset

Applying a function to every row of a table using dplyr?

Change value of variable with dplyr

R Dataframe Plyr Dplyr

What can MATLAB do that R cannot do?

Matlab R Scientific Computing

What does "S3 methods" mean in R?

R Oop R Faq R S3 R S4

How to unload a package without restarting R

R Package R Faq

remove legend title in ggplot

How to use Greek symbols in ggplot2?

R Graphics Unicode Utf 8 Ggplot2

To find whether a column exists in data frame or not

Select the row with the maximum value in each group

R Dataframe R Faq

Limit ggplot2 axes without removing data (outside limits): zoom

R Ggplot2 Zooming Limits

Printing newlines with print() in R

Filtering a data frame by values in a column

R Filter Dataframe

How to add \newpage in Rmarkdown in a smart way?

How to search for "R" materials?

The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or dataframe

R List Dataframe Extract R Faq

Unable to install R package in Ubuntu 11.04

Xml R Ubuntu Installation

How to remove last n characters from every element in the R vector

Create empty data frame with column names by assigning a string vector?

Control the size of points in an R scatterplot?

R Plot Scatter Plot

Create a matrix of scatterplots (pairs() equivalent) in ggplot2

R Ggplot2 Visualization

'Incomplete final line' warning when trying to read a .csv file into R

R Line Endings read.csv

How can I plot with 2 different y-axes?

Showing data values on stacked bar chart in ggplot2

R Graphics Ggplot2

adding x and y axis labels in ggplot2

R Label Ggplot2

Fixing the order of facets in ggplot

R Ggplot2 Sequence Facet

What's the best way to use R scripts on the command line (terminal)?

R Bash Command Line Scripting

Check if the number is integer

R Integer Rounding

remove all variables except functions

Get type of all variables

For each row return the column name of the largest value

Convert a list to a data frame

R List Dataframe

Test if a vector contains a given element

How do I combine two data-frames based on two columns?

R Merge Dataframe

Convert column classes in data.table

Finding row index containing maximum value using R

Select first 4 rows of a data.frame in R

How to test if list element exists?

How to calculate the number of occurrence of a given character in each row of a column of strings?

Regex R Dataframe

Increase distance between text and title on the y-axis

R Layout Plot Ggplot2

R object identification

Unique combination of all elements from two (or more) vectors

passing several arguments to FUN of lapply (and others *apply)

Run R script from command line

How to get a vertical geom_vline to an x-axis of class date?

R Date Ggplot2 Time Series

Split column at delimiter in data frame

Error in <my code> : object of type 'closure' is not subsettable

How to append rows to an R data frame

R Merge Append Dataframe Rows

Changing fonts in ggplot2

R Ggplot2 Fonts Extrafont Showtext

Extract a regular expression match

Scheduling R Script

R Windows Schedule R Faq

Drop unused factor levels in a subsetted data frame

R Dataframe R Factor R Faq

Position geom_text on dodged barplot

R Plot Ggplot2 Bar Chart

Rolling median algorithm in C

C Algorithm R Statistics Median

What does "not run" mean in R help pages?

R: rJava package install failing

How to draw an empty plot?

Remove data.frame row names when using xtable

Transpose a data frame

Create a group number for each consecutive sequence

R Dataframe Sequence

Remove grid, background color, and top and right borders from ggplot2

ggplot geom_text font size control

rJava load error in RStudio/R after "upgrading" to OSX Yosemite

Java R Rstudio Rjava Macos High-Sierra

How do I sort one vector based on values of another

General suggestions for debugging in R

R Debugging R Faq

Getting and removing the first character of a string

Error in plot.new() : figure margins too large in R

Replacement for "rename" in dplyr

R: use magrittr pipe operator in self written package

R Namespaces Magrittr

Linear Regression and group by in R

R Regression Linear Regression Lm

detach all packages while working in R

Set default CRAN mirror permanent in R

ggplot2 legend to bottom and horizontal

Gradient of n colors ranging from color 1 and color 2

Convert string to a variable name

What's the difference between `=` and `<-` in R?

R Assignment Operator Variable Assignment

Is it possible to have a multi-line comments in R?

Test for equality among all elements of a single numeric vector

R Vector Equality

How to make a great R reproducible example

Create an empty data.frame

R Dataframe R Faq

R.exe, Rcmd.exe, Rscript.exe and Rterm.exe: what's the difference?

R Executable Rgui Rterm

How to include (source) R script in other scripts

ggplot2 keep unused levels barplot

R Ggplot2 Legend Levels

How to combine two RMarkdown (.Rmd) files into a single output?

R Knitr Pandoc R Markdown

Error: could not find function "%>%"

R Dplyr Magrittr

How to get R script line numbers at error?

Creating an R dataframe row-by-row

List R Dataframe

How to round up to the nearest 10 (or 100 or X)?

`levels<-`( What sorcery is this?

How do I import a CSV file in R?

What is the purpose of setting a key in data.table?

R Conditional evaluation when using the pipe operator %>%

R Dplyr Ggvis Magrittr

Multiline Comment Workarounds?

R Comments R Faq

What is your preferred style for naming variables in R?

R Coding Style Naming Conventions

Geometric Mean: is there a built-in?

R Statistics Built In Geometric Mean

Specifying colClasses in the read.csv

Where can I learn how to write C code to speed up slow R functions?

Confusion between factor levels and factor labels

R R Factor R Faq

Disable messages upon loading a package

R Message Libraries Suppress Warnings Verbosity

Error: gdal-config not found while installing R dependent packages whereas gdal is installed

Linux R Installation Gdal

Export a graph to .eps file with R

Breaking loop when "warnings()" appear in R

R Loops Warnings Break

Rotating x axis labels in R for barplot

R Graph Plot Bar Chart Axis Labels

How to not run an example using roxygen2?

Passing command line arguments to R CMD BATCH

Paste multiple columns together

How to get row from R data.frame

R Indexing Dataframe

How to use the 'sweep' function

Replace X-axis with own values

R Plot Axis Labels

Extract month and year from a zoo::yearmon object

Cleaning `Inf` values from an R dataframe

R Dataframe data.table

filter for complete cases in data.frame using dplyr (case-wise deletion)

R Dplyr Magrittr

R dplyr: Drop multiple columns

Relationship between R Markdown, Knitr, Pandoc, and Bookdown

R Knitr R Markdown Pandoc Bookdown

How to put labels over geom_bar for each bar in R with ggplot2

R Ggplot2 Bar Chart

Define all functions in one .R file, call them from another .R file. How, if possible?

R File Scope Namespaces User Defined-Functions

rgdal package installation

What's the difference between integer class and numeric class in R

R Class Object Integer Numeric

Quickly reading very large tables as dataframes

R Import Dataframe R Faq

Gather multiple sets of columns

R Reshape Dplyr Qualtrics Tidyr

R for loop skip to next iteration ifelse

How do I make a matrix from a list of vectors in R?

R Matrix Vector

Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor level

How do I change the background color of a plot made with ggplot2

R: Comment out block of code

How to upgrade R in ubuntu?

Repeat rows of a data.frame

R Dataframe Rows Repeat

Remove extra legends in ggplot2

R Ggplot2 Legend

Pass column name in data.table using variable

knitr Markdown highlighting in Emacs?

R Emacs Syntax Highlighting Knitr

How to change 'Maximum upload size exceeded' restriction in Shiny and save user file inputs?

dplyr summarise: Equivalent of ".drop=FALSE" to keep groups with zero length in output

R Dplyr Plyr Tidyr

How to add texture to fill colors in ggplot2

Subscripts in plots in R

R Plot Subscript

Add (insert) a column between two columns in a data.frame

R Dataframe Insert

R: Count number of objects in list

Subset of rows containing NA (missing) values in a chosen column of a data frame

R Csv Dataframe Subset Na

group by two columns in ggplot2

How do I arrange a variable list of plots using grid.arrange?

How to change the default font size in ggplot2

R Ggplot2 Default Font Size

The cause of "bad magic number" error when loading a workspace and how to avoid it?

R Workspace Magic Numbers

Count number of rows by group using dplyr

R Dplyr Count Plyr

Hosting and setting up own shiny apps without shiny server

R Web Hosting Shiny Shiny Server

Converting string to numeric

How can I load an object into a variable name that I specify from an R data file?

R Variable Names Rdata

List distinct values in a vector in R

R Vector Distinct Values R Faq

Tricks to manage the available memory in an R session

Memory Management R

How to parse XML to R data frame

Getting the top values by group

R data.table Dplyr

How can I manipulate the strip text of facet_grid plots?

Comma separator for numbers in R?

How to randomize (or permute) a dataframe rowwise and columnwise?

R Random Permutation

R programming: How do I get Euler's number?

R Eulers Number

How do you specifically order ggplot2 x axis instead of alphabetical order?

R Ggplot2 R Faq

Specify custom Date format for colClasses argument in read.table/read.csv

R Date read.table read.csv

How to remove outliers from a dataset

Sort columns of a dataframe by column name

R Sorting Dataset

Left align two graph edges (ggplot)

R Ggplot2 Gridextra Gtable

What are the "standard unambiguous date" formats for string-to-date conversion in R?

R Date Date Formatting Strptime as.date

Rename multiple columns by names

R Dataframe Rename R Faq

Add an index (numeric ID) column to large data frame

How to add table of contents in Rmarkdown?

R Rstudio R Markdown

Easy way to export multiple data.frame to multiple Excel worksheets

switch() statement usage

R Switch Statement

ggplot2 plot area margins?

R Ggplot2 Data Visualization

How do I extract just the number from a named number (without the name)?

R Vector Named Lm

How to specify names of columns for x and y when joining in dplyr?

R Join Left Join Dplyr

dplyr mutate with conditional values

How to disable "Save workspace image?" prompt in R?

R Read Eval-Print-Loop

Converting year and month ("yyyy-mm" format) to a date?

R Date Posix Zoo R Faq

Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/POSIXlt

R Date Time Benchmarking

Programmatically creating Markdown tables in R with KnitR

R Markdown Knitr R Markdown

How to display only integer values on an axis using ggplot2

How to left align text in annotate from ggplot2

R Ggplot2 Text Alignment Annotate

How to convert Excel date format to proper date in R

R Excel Date Datetime Lubridate

How to learn R as a programming language

Does R have an assert statement as in python?

R Assert Language Design Assertions

How to name variables on the fly?

Gantt charts with R

R Charts Gantt Chart

How can I extract plot axes' ranges for a ggplot2 object?

How to setup workers for parallel processing in R using snowfall and multiple Windows nodes?

R Windows Parallel Processing Cluster Computing Snowfall

How to find out which package version is loaded in R?

R Package Version

can I change the position of the strip label in ggplot from the top to the bottom?

R Ggplot2 Strip Facet

How to create an empty R vector to add new items

Python R Vector Rpy2

What's the fastest way to merge/join data.frames in R?

Performance R Join Merge data.table

Case Statement Equivalent in R

Read all files in a folder and apply a function to each data frame

R List Lapply Summary

Select the first row by group

R Dataframe Sqldf

Skipping error in for-loop

Convert Named Character Vector to data.frame

R Dataframe Vector Type Conversion

Replace all particular values in a data frame

R Dataframe Replace

Rstudio rmarkdown: both portrait and landscape layout in a single PDF

R Pdf Rstudio Knitr R Markdown

Plot labels at ends of lines

R Ggplot2 Legend

R: removing NULL elements from a list

Suppress output of a function

Create a variable name with "paste" in R?

Remove part of a string

Error: C stack usage is too close to the limit

Why does unlist() kill dates in R?

Explain ggplot2 warning: "Removed k rows containing missing values"

Parse JSON with R

How to find the standard error of the mean?

R Statistics Standard Error

Quit and restart a clean R session from within R?

Intelligent point label placement in R

Select multiple elements from a list

R spreading multiple columns with tidyr

R Dataframe Dplyr Tidyr

Pass a string as variable name in dplyr::filter

Remove facet_wrap labels completely

R Graphics Ggplot2

Extract the first (or last) n characters of a string

Convert a vector into a list, each element in the vector as an element in the list

How to deal with "data of class uneval" error from ggplot2?

Problems when trying to load a package in R due to rJava

Change the Blank Cells to "NA"

Fitting a density curve to a histogram in R

R Histogram Curve Fitting R Faq

write.table writes unwanted leading empty column to header when has rownames

R Export to-Csv write.table

Exception handling in R

R Exception Handling

Working with dictionaries/lists to get list of keys

R List Hashmap Lookup

Apply several summary functions on several variables by group in one call

R Aggregate R Faq

Split a large dataframe into a list of data frames based on common value in column

R Performance Matrix Split Dataframe

Select first element of nested list

Extract row corresponding to minimum value of a variable by group

R Dplyr data.table Aggregate

Find duplicated elements with dplyr

Get filename without extension in R

Shading a kernel density plot between two points.

how to increase the limit for max.print in R

Assign multiple new variables on LHS in a single line

R Variables Tuples Variable Assignment Assign

How to source R Markdown file like `source('myfile.r')`?

R Markdown Knitr

How to add a ggplot2 subtitle with different size and colour?

R Ggplot2 Subtitle

Select / assign to data.table when variable names are stored in a character vector

How to increase the size of points in legend of ggplot2?

Move a column to first position in a data frame

Regex group capture in R with multiple capture-groups

Regex R Capture Capture Group

Sum rows in data.frame or matrix

R Dataframe Matrix Rowsum

Choosing between qplot() and ggplot() in ggplot2

Creating a comma separated vector

Importing Excel files into R, xlsx or xls

How to save all console output to file in R?

File R Console Logging

How to subset matrix to one column, maintain matrix data type, maintain row/column names?

R Matrix Subset R Faq

Pandas version of rbind

Python R Dataframe Pandas

Collapse / concatenate / aggregate a column to a single comma separated string within each group

R Aggregate R Faq

Apply a function to every specified column in a data.table and update by reference

dplyr: "Error in n(): function should not be called directly"

R Function Plyr Dplyr Conflicting Libraries

Save a plot in an object

Extract year from date

Why is message() a better choice than print() in R for writing a package?

Inverse of matrix in R

R Matrix Inverse

What are 'user' and 'system' times measuring in R system.time(exp) output?

How to fix the aspect ratio in ggplot?

Repeat rows of a data.frame N times

Count the number of all words in a string

R String Word Count

Compile R script into standalone .exe file?

How to delete columns that contain ONLY NAs?

break/exit script

Select columns based on string match - dplyr::select

dplyr mutate/replace several columns on a subset of rows

R data.table Dplyr

Check existence of directory and create if doesn't exist

Factors in R: more than an annoyance?

R Language Design Internals R Factor

Plot correlation matrix into a graph

R Ggplot2 Plot Correlation

geom_smooth() what are the methods available?

Split text string in a data.table columns

R ggplot2: stat_count() must not be used with a y aesthetic error in Bar graph

R Ggplot2 Bar Chart

How to show code but hide output in RMarkdown?

R Knitr R Markdown

How to tell what is in one vector and not another?

How to fit a smooth curve to my data in R?

R Plot Curve Fitting

Get column index from label in a data frame

Arbitrary sections in roxygen docs

Read an Excel file directly from a R script

Create sequence of repeated values, in sequence?

R Repeat Seq Replicate

Remove part of string after "."

Combine legends for color and shape into a single legend

Read all worksheets in an Excel workbook into an R list with data.frames

R Excel Xlconnect

Read fixed width text file

How to save plots that are made in a shiny app

R Ggplot2 Shiny

How to do vlookup and fill down (like in Excel) in R?

How to replace NA values in a table for selected columns

R Replace Dataframe data.table Na

ggplot plots in scripts do not display in Rstudio

R Ggplot2 Rstudio

How to use R with Google Colaboratory?

R Jupyter Notebook Google Colaboratory

Understanding the order() function

R Sorting R Faq

Getting the last n elements of a vector. Is there a better way than using the length() function?

unique() for more than one variable

How can I obtain an 'unbalanced' grid of ggplots?

R Ggplot2 R Grid

Do I need to normalize (or scale) data for randomForest (R package)?

R Random Forest

How to get summary statistics by group

R Dplyr Stat Summarize S

equivalent of a python dict in R

Python R Dictionary

Remove multiple objects with rm()

Filtering out duplicated/non-unique rows in data.table

R Duplicates data.table

How to create a numeric vector of zero length in R

R Vector Numeric Zero

How to randomize a vector

R Vector Random Shuffle

Filter multiple values on a string column in dplyr

R Dplyr String Matching Multiple Conditions

Legend on bottom, two rows wrapped in ggplot2 in r

R Ggplot2 Legend

dplyr on data.table, am I really using data.table?

R data.table Dplyr

How to find the statistical mode?

R Statistics R Faq

Counting the number of elements with the values of x in a vector

R Vector Count R Faq

How can I suppress the vertical gridlines in a ggplot2 plot?

How can I arrange an arbitrary number of ggplots using grid.arrange?

Why are loops slow in R?

Performance R Apply

How to delete the first row of a dataframe in R?

Unique on a dataframe with only selected columns

Generate a dummy-variable

Find the location of a character in string

R Error in x$ed : $ operator is invalid for atomic vectors

How to listen for more than one event expression within a Shiny eventReactive handler

How to sum a variable by group

R Dataframe Aggregate R Faq

Changing column names of a data frame

R Dataframe Rename

How to write trycatch in R

R Exception Exception Handling Try Catch R Faq

Removing empty rows of a data file in R

Extracting time from POSIXct

R Date Time Posixct

How do I get the classes of all columns in a data frame?

set only lower bound of a limit for ggplot

Select rows from a data frame based on values in a vector

Get all Parameters as List

R install.packages returns "failed to create lock directory"

R sequence of dates with lubridate

What does "The following object is masked from 'package:xxx'" mean?

Fitting polynomial model to data in R

R Curve Fitting Data Analysis Polynomial Math

Is there a built-in way to do a logarithmic color scale in ggplot2?

ggplot combining two plots from different data.frames

Zip or enumerate in R?

R Indexing Enumerate

Select random element in a list of R?

Create a data.frame where a column is a list

R List Dataframe

Cluster analysis in R: determine the optimal number of clusters

R Cluster Analysis K Means

Sankey Diagrams in R?

R Visualization Diagram Flowchart Sankey Diagram

How do you add a general label to facets in ggplot2?

R Label Facet Ggplot2

Use a value from the previous row in an R data.table calculation

Find duplicate values in R

R Apply() function on specific dataframe columns

R Dataframe Apply

Using roxygen2 and doxygen on the same package?

C R Documentation Doxygen Roxygen2

R - How to test for character(0) in IF statement

How to prevent scientific notation in R?

Use pipe operator %>% with replacement functions like colnames()<-

R Dplyr Magrittr

Coerce multiple columns to factors at once

R Dataframe R Factor

How to obtain a list of directories within a directory, like list.files(), but instead "list.dirs()"

How can I create a correlation matrix in R?

R Matrix Visualization Correlation

How to coerce a list object to type 'double'

Auto-format R code in RStudio

R Rstudio Autoformatting

Control point border thickness in ggplot

R Ggplot2 Border Point Thickness

What's the difference between facet_wrap() and facet_grid() in ggplot2?

R Ggplot2 Facet Wrap

Error in fetch(key) : lazy-load database

Saving a high resolution image in R

R Ggplot2 Publish Tiff

How to parse milliseconds?

R Datetime Time Series Strptime

Changing line colors with ggplot()

How to convert a matrix to a list of column-vectors in R?

When should I use the := operator in data.table?

R data.table Colon Equals

How can I interrupt a running code in R with a keyboard command?

File path issues in R using Windows ("Hex digits in character string" error)

R Filepath Backslash Path Separator

R - do I need to add explicit new line character with print()?

R Printing Newline

Return index of the smallest value in a vector?

What are the differences between community detection algorithms in igraph?

How to use the switch statement in R functions?

R Switch Statement

Creating a Prompt/Answer system to input data into R

Counting unique / distinct values by group in a data frame

R Dataframe Distinct Values R Faq

Get the difference between dates in terms of weeks, months, quarters, and years

Pasting two vectors with combinations of all vectors' elements

Handling java.lang.OutOfMemoryError when writing to Excel from R

Removing NA in dplyr pipe

How do I deal with special characters like \^$.?*|+()[{ in my regex?

How can two strings be concatenated?

R String Concatenation R Faq

What is the most useful R trick?

Trimming a huge (3.5 GB) csv file to read into R

How to assign the result of the previous expression to a variable?

R Return Value Interactive Built In

How to plot all the columns of a data frame in R

R Dataframe Plot R Faq

Usage of `...` (three-dots or dot-dot-dot) in functions

Types and classes of variables

What is the difference between parent.frame() and parent.env() in R; how do they differ in call by reference?

R Environment Function Call Stack Frame

How to sum data.frame column values?

R Dataframe Sum Aggregate Functions

Calculate the mean by group

R Dataframe R Faq

R shiny passing reactive to selectInput choices

R Shiny Shiny Reactivity

Removing display of row names from data frame

R Printing Dataframe Output Formatting Rowname

How do I install an R package from source?

Combine a list of data frames into one data frame by row

R List Dataframe R Faq

Is there a way to use read.csv to read from a string value rather than a file in R?

R Csv File Io read.csv

Formula with dynamic number of variables

R Formula R Formula

How to set legend alpha with ggplot2

How to overlay density plots in R?

R Plot Density Plot

What does the dot mean in R – personal preference, naming convention or more?

R Coding Style Naming Conventions Plyr

Using data.table package inside my own package

Function to concatenate paths?

R Path Concatenation

Create a Vector of All Days Between Two Dates

Plot multiple boxplot in one graph

R Plot Ggplot2 Boxplot

Convert all data frame character columns to factors

How to get week numbers from dates?

R Date data.table Week Number

Linking to other packages in documentation in roxygen2 in R

R Documentation Roxygen2

Inconsistent behaviour with tm_map transformation functions when using multiple cores

R Parallel Processing Text Mining Tm Doparallel

How to add leading zeros?

R Formatting Number Formatting R Faq

Position of the sun given time of day, latitude and longitude

R Math Geometry Astronomy Azimuth

Why is `vapply` safer than `sapply`?

How to flatten a list of lists?

Remove multiple columns from data.table

Construct a manual legend for a complicated plot

R Data Visualization Ggplot2

How can I build a model to distinguish tweets about Apple (Inc.) from tweets about apple (fruit)?

Java Python R Machine Learning Classification

Extract a column from a data.table as a vector, by position

R Vector Indexing data.table

Get coefficients estimated by maximum likelihood into a stargazer table

R Optimization Lm Stargazer

python equivalent of R table

Python R Frequency

How exactly does R parse `->`, the right-assignment operator?

R move column to last using dplyr

R on MacOS Error: vector memory exhausted (limit reached?)

R Macos Bioconductor

Select only rows if its value in a particular column is less than the value in the other column

Why is `[` better than `subset`?

R Filter Subset R Faq

Extracting specific columns from a data frame

R Dataframe R Faq

How to change legend title in ggplot

How to quickly form groups (quartiles, deciles, etc) by ordering column(s) in a data frame

R Sorting Dataframe

R: what are Slots?

Oop R S4 Slot R Faq

Extract regression coefficient values

R Regression Lm

Elegant way to report missing values in a data.frame

R Dataframe Missing Data

How to see the source code of R .Internal or .Primitive function?

Merging a lot of data.frames

R Dataframe Merge

ggplot2: Adjust the symbol size in legends

Shift legend into empty facets of a faceted plot in ggplot2

Convert a dataframe to a vector (by rows)

R Dataframe Vector R Faq

How to move or position a legend in ggplot2

R Ggplot2 Legend Legend Properties

Change the class from factor to numeric of many columns in a data frame

Reusing a Model Built in R

Elegant indexing up to end of vector/matrix

R Matrix Dataframe Indexing

What is the difference between gc() and rm()

R Memory Management Garbage Collection

What are examples of when seq_along works, but seq produces unintended results?

Convert from lowercase to uppercase all values in all character variables in dataframe

R String Uppercase

Subscript letters in ggplot axis label

Avoid ggplot sorting the x-axis while plotting geom_bar()

Convert a data frame to a data.table without copy

R Dataframe Reference data.table

Virtual environment in R?

How to plot a function curve in R

R Ggplot2 Plot Lattice R Faq

dplyr::select one column and output as vector

R Select Vector Dataframe Dplyr

R Shiny: reactiveValues vs reactive

Advantages of reactive vs. observe vs. observeEvent

Number of months between two dates

Reset par to the default values at startup

Create a numeric vector with names in one statement?

Use tryCatch skip to next value of loop upon error?

R Error Handling Exception Handling Try Catch

Converting two columns of a data frame to a named vector

R Vector Dataframe Coercion

auto.arima() equivalent for python

Python R Time Series Statsmodels Forecasting

dplyr change many data types

R Dataframe Dplyr

Does R have function startswith or endswith like python?

Python R String Startswith Ends With

How can I play birthday music using R?

How to split a data frame?

R Split Dataframe R Faq

Subset / filter rows in a data frame based on a condition in a column

R Dataframe Subset R Faq

Change the spacing of tick marks on the axis of a plot?

Do not want scientific notation on plot axis

Math R Graphics

Elegant way to check for missing packages and install them?

R Packages R Faq

Write lines of text to a file in R

How to tell CRAN to install package dependencies automatically?

Undefined columns selected when subsetting data frame

R Dataframe Subset

shiny 4 small textInput boxes side-by-side

Include code that does not run in Rpresentation Markdown

R Markdown Presentation

Merge Multiple spaces to single space; remove trailing/leading spaces

R Pattern Matching

Get dplyr count of distinct in a readable way

Replace all occurrences of a string in a data frame

Append data frames together in a for loop

gsub() in R is not replacing '.' (dot)

R Regex Gsub Stringr

Create new variables with mutate_at while keeping the original ones

Is there any standard logging package for R?

Replacing character values with NA in a data frame

R: losing column names when adding rows to an empty data frame

R Dataframe Names Rbind

How to rename a single column in a data.frame?

Conditional replacement of values in a data.frame

R and object oriented programming

Installing R from CRAN Ubuntu repository: No Public Key Error

How to print (to paper) a nicely-formatted data frame

R Dataframe Formatting

What exactly is copy-on-modify semantics in R, and where is the canonical source?

R Pass by-Reference Pass by-Value

Efficiently convert backslash to forward slash in R

R Escaping Filepath

Why use as.factor() instead of just factor()

Histogram with Logarithmic Scale and custom breaks

R Histogram Logarithm

Access a URL and read Data with R

Side-by-side plots with ggplot2

R Ggplot2 Visualization R Faq

How to set limits for axes in ggplot2 R plots?

Sample random rows in dataframe

R Dataframe Random R Faq

Removing non-ASCII characters from data files

R Unicode Ascii Non Ascii-Characters

Speeding up Julia's poorly written R examples

R Optimization Julia

ggplot2 - annotate outside of plot

R Annotations Ggplot2

R Reading in a zip data file without unzipping it

What is difference between dataframe and list in R?

R List Dataframe

Re-ordering factor levels in data frame

R Dataframe Levels R Faq

How to check if two data frames are equal

Database R Dataset Compare Dataframe

Importing a big xlsx file into R?

How to declare a vector of zeros in R

What IDEs are available for R in Linux?

Finding local maxima and minima

Controlling ggplot2 legend display order

How to group data.table by multiple columns?

R Group By data.table

How to leave the R browser() mode in the console window?

Namespace dependencies not required

What you can do with a data.frame that you can't with a data.table?

R Dataframe data.table

Convert R vector to string vector of 1 element

String R Vector Arguments System

Plot multiple lines (data series) each with unique color in R

R Colors Plot Unique Lines

Add count of unique / distinct values by group to the original data

R Count Unique Aggregate

Merge two data frames while keeping the original row order

R Sorting Dataframe Merge

Understanding `scale` in R

R Scale Transformation Heatmap

Getting Warning: " 'newdata' had 1 row but variables found have 32 rows" on predict.lm

R Prediction Lm

How to install multiple packages?

Error: package or namespace load failed for ggplot2 and for data.table

R Ggplot2 data.table

Using ggplot2, can I insert a break in the axis?

R Ggplot2 R Faq

How to use random forests in R with missing values?

R Random Forest

Merge Two Lists in R

R List Dataframe

General guide for creating publication quality tables using R, Sweave, and LaTeX

R Sweave Xtable

Find indices of duplicated rows

R Duplicates Dataframe

Round up from .5

R Rounding R Faq

Simple way to subset SpatialPolygonsDataFrame (i.e. delete polygons) by attribute in R

R Mapping Spatial Maptools

Combine base and ggplot graphics in R figure window

R Plot Ggplot2 Base Biwavelet

Error: could not find function "unit"

How to save data file into .RData?

Can dplyr summarise over several variables without listing each one?

dplyr filter: Get rows with minimum of variable, but only the first if multiple minima

Code to clear all plots in RStudio

How to remove a directory in R?

RMarkdown: How to change the font color?

R cmd check note: unable to verify current time

How to subtract/add days from/to a date?

Multiply rows of matrix by vector?

R Vector Matrix Multiplication

R: 2 functions with the same name in 2 different packages

Function R Packages Conflict

Proxy setting for R

ggplot2 reverse order of scale_brewer

How can I print when using %dopar%

R Foreach Parallel Processing

Add multiple columns to R data.table in one function call?

Any way to make plot points in scatterplot more transparent in R?

R Plot Ggplot2 Alpha

Reading text file with multiple space as delimiter in R

R File Space Delimited

Boxplot show the value of mean

Overlay normal curve to histogram in R

R Plot Histogram Gaussian

Extract the maximum value within each group in a dataframe

Set certain values to NA with dplyr

How to get row index number in R?

Keeping trailing zeros

R Math Rounding

Windows 7, update.packages problem: "unable to move temporary installation"?

R Windows 7 Permissions Packages File Permissions

Why use c() to define vector?

How do I copy and paste data into R from the clipboard?

How to turn a vector into a matrix in R?

R Vector Matrix

Subscript out of bounds - general definition and solution?

How do I extract a single column from a data.frame as a data.frame?

R Dataframe Subset

Outputting multiple lines of text with renderText() in R shiny

How to create a lag variable within each group?

R data.table Plyr Dplyr

R Markdown - changing font size and font type in html output

R Knitr R Markdown

Representing Parametric Survival Model in 'Counting Process' form in JAGS

R Survival Analysis Jags Stan Weibull

Explain the quantile() function in R

Math R Statistics

How to get the second sub element of every element in a list

When does it pay off to use S4 methods in R programming

Oop R Methods S4

How to see data from .RData file?

Access and preserve list names in lapply function

R adding days to a date

R Datetime Date

How do I check the existence of a downloaded file

Control ggplot2 legend look without affecting the plot

R Plot Ggplot2 Legend

How to reverse order a vector?

R Sorting Vector Reverse

How to find the length of a string in R

R String Unicode String Length

How can I trim leading and trailing white space?

R Whitespace Trim Removing Whitespace R Faq

.EACHI in data.table?

R Performance Group By data.table

Changing factor levels with dplyr mutate

Split string based on alternating character in R

How to specify "does not contain" in dplyr filter

R + Shiny which hammer? straight Shiny, flexdashboard or shinydashboard?

R Shiny Shinydashboard Flexdashboard

Cartesian product data frame

Imported a csv-dataset to R but the values becomes factors

R R Factor read.csv

Decompress gz file using R

Test if an argument of a function is set or not in R

R Function Variables Variable Assignment Isset

Delete rows with blank values in one particular column

R Dataframe Missing Data

Create stacked barplot where each stack is scaled to sum to 100%

How do I clean up R memory without restarting my PC?

Calculate difference between values in consecutive rows by group

Change variable name in for loop using R

Convert named list to vector with values only

How to create an empty matrix in R?

Fitting several regression models with dplyr

Using Caret Package but Getting Error in library(e1071)

Adding custom image to geom_polygon fill in ggplot

Understanding the contents of the Makevars file in R (macros, variables, ~/.R/Makevars and pkg/src/Makevars)

Creating a Plot Window of a Particular Size

Moving columns within a data.frame() without retyping

do-while loop in R

R Loops Repeat Do While R Faq

All Levels of a Factor in a Model Matrix in R

R Matrix Model Indicator

Convert data.frame columns from factors to characters

Is there an R function for finding the index of an element in a vector?

R Indexing Match Vectorization

Plot a function with ggplot, equivalent of curve()

Merge unequal dataframes and replace missing rows with 0

R Merge Dataframe

Options for caching / memoization / hashing in R

R Caching Hash Memoization Memoise

duplicate 'row.names' are not allowed error

Getting strings recognized as variable names in R

R Variables String Concatenation

Why am I getting X. in my column names when reading a data frame?

R Dataframe read.csv Illegal Characters

How to save a plot made with ggplot2 as SVG

Confidence intervals for predictions from logistic regression

R Statistics Glm Confidence Interval

R pass variable column indices to ggplot2

R Ggplot2 Dataframe

Compare two character vectors in R

"Non Zero Exit Status" R 3.0.1 'XML' and 'RCurl'

Xml Linux R Rcurl install.packages

dplyr mutate rowSums calculations or custom functions

Library is not writable

Lattice: multiple plots in one window?

How do you use multiple versions of the same R package?

R Versioning Packages

Getting path of an R script

ggplot2, facet_grid, free scales?

Combining paste() and expression() functions in plot labels

Fastest way to detect if vector has at least 1 NA?

Automatically Delete Files/Folders

R File Path Directory Delete File

Legend placement, ggplot, relative to plotting region

"%%" and "%/%" for the remainder and the quotient

R knitr Markdown: Output Plots within For Loop

R Ggplot2 Knitr Rstudio

Locate the ".Rprofile" file generating default options

Common main title of a figure panel compiled with par(mfrow)

R Graph Plot Title Par

Summarizing multiple columns with data.table

Creating multi column legend in ggplot

ending "+" prompt in R

Wrap long axis labels via labeller=label_wrap in ggplot2

R Ggplot2 Plot Axis Labels

Unable to install packages in latest version of RStudio and R Version.3.1.1

dplyr summarise_each with na.rm

Plotting with ggplot2: "Error: Discrete value supplied to continuous scale" on categorical y-axis

R Ggplot2 Scale Categorical Data R Factor

Applying group_by and summarise on data while keeping all the columns' info

Function to calculate geospatial distance between two points (lat,long) using R

R Package Geospatial Distance Latitude Longitude

avoid string printed to console getting truncated (in RStudio)

R Rstudio Settings Output Formatting

Can you pass-by-reference in R?

R Oop Parameter Passing Pass by-Reference

How can I check whether a function call results in a warning?

R plot: size and resolution

How to convert R Markdown to HTML? I.e., What does "Knit HTML" do in Rstudio 0.96?

R Rstudio Knitr R Markdown

R expand.grid() function in Python

Plot size and resolution with R markdown, knitr, pandoc, beamer

R Knitr Pandoc Beamer R Markdown

Custom legend for multiple layer ggplot

Subset data to contain only columns whose names match a condition

ggplot2 bar plot, no space between bottom of geom and x axis keep space above

How to divide each row of a matrix by elements of a vector in R

R Matrix Vector

Embedding Image in Shiny App

Centering image and text in R Markdown for a PDF report

R Markdown R Markdown

Forcing garbage collection to run in R with the gc() command

R Garbage Collection

Getting R plots into LaTeX?

Graphics R Latex Vector Graphics

Prevent unlist to drop NULL values

Extract p-value from aov

How to efficiently use Rprof in R?

R Profiling Profiler

Calculate the Area under a Curve

R Numerical Integration

Append lines to a file

R File Large Data

Formatting dates with scale_x_date in ggplot2

R Date Formatting Ggplot2

How do I rename files using R?

Formatting dates on X axis in ggplot2

ggplot2 two-line label with expression

What specifically are the dangers of eval(parse(...))?

Insert a character at a specific location in a string

R Plotting confidence bands with ggplot

Add a prefix to column names

Replace multiple letters with accents with gsub

Generate list of all possible combinations of elements of vector

R Combinations Permutation

ggplot2: facet_wrap strip color based on variable in data set

R Ggplot2 Facet Wrap

Delete rows containing specific strings in R

R String Match Rows

How to find the highest value of a column in a data frame in R?

Comparing gather (tidyr) to melt (reshape2)

R Reshape2 Tidyr

How to organize large Shiny apps?

How to perform multiple left joins using dplyr in R

Get the list of installed packages by user in R

How do I change the number of decimal places on axis labels in ggplot2?

Change bar plot colour in geom_bar with ggplot2 in r

R Ggplot2 Colors Geom Bar

Extracting a string between other two strings in R

Regex R Stringr

How to increase the number of columns using R in Linux

How does one reorder columns in a data frame?

R Sorting Dataframe R Faq

Access variable value where the name of variable is stored in a string

R Variables R Faq

How to put labels over geom_bar in R with ggplot2

Draw a circle with ggplot2

R Ggplot2 Geometry

Calculate row means on subset of columns

rbind error: "names do not match previous names"

Subsetting R data frame results in mysterious NA rows

R Subset Reshape Na

Controlling the order of points in ggplot2?

knitr/Rmd: page break after n lines/n distance

R Knitr R Markdown

Restart mixed effect model estimation with previously estimated values

R Lme4 Mixed Models Lmer

How to repeat a String N times in R?

String R Repeat

if else condition in ggplot to add an extra layer

R If Statement Ggplot2

dplyr::select function clashes with MASS::select

How to crash R?

How to merge 2 vectors alternating indexes?

What are Python pandas equivalents for R functions like str(), summary(), and head()?

Python R Pandas

Reverse order of discrete y axis in ggplot2

How can I spread repeated measures of multiple variables into wide format?

groupby weighted average and sum in pandas dataframe

Python R Pandas

Unseen factor levels when appending new records with unseen string values to a dataframe, cause Warning and result in NA

R Dataframe Append R Factor

How to change the default time zone in R?

R Timezone Date Arithmetic

Proper/fastest way to reshape a data.table

How to reset par(mfrow) in R

R Plot Reset R Base-Graphics

How to specify the actual x axis values to plot as x axis ticks in R

Global variables in packages in R

R Global Variables

Read a text file in R line by line

List all column except for one in R

Read a CSV from github into R

R Data Manipulation Data Management

Appending a list to a list of lists in R

R List Matrix Append Extend

Pre- or post-process roxygen snippets

Subset rows corresponding to max value by group using data.table

R data.table Greatest N-per-Group

geom_rect and alpha - does this work with hard coded values?

R Ggplot2 Alpha Transparency

Subset and ggplot2

R Ggplot2 Subset

rmarkdown: pandoc: pdflatex not found

R Macos Pandoc Pdflatex R Markdown

Left join only selected columns in R with the merge() function

multiple authors and subtitles in Rmarkdown yaml

R Yaml Rstudio R Markdown

How to use grep()/gsub() to find exact match

R Regex Word Boundary

How to install R packages that are not available in "R-essentials"?

Python R Anaconda Conda

How to merge color, line style and shape legends in ggplot

"long vectors not supported yet" error in Rmd but not in R Script

R Rstudio Knitr R Markdown

List of ggplot2 theme options?

How to increase the space between the bars in a bar plot in ggplot2?

R package that automatically uses several cores?

R: how to clear all warnings

How to sort a data frame by date

R Sorting Date Dataframe

Remove Rows From Data Frame where a Row matches a String

Make R exit with non-zero status code

Get the column number in R given the column name

R define dimensions of empty data frame

How to load packages in R automatically?

R Loading R Package R Faq Defaults

The R %in% operator

extract hours and seconds from POSIXct for plotting purposes in R

R Datetime Ggplot2 Lubridate

Understanding dates and plotting a histogram with ggplot2 in R

R Datetime Ggplot2 Histogram

How to automatically include all 2-way interactions in a glm model in R

Is there a table or catalog of aesthetics for ggplot2?

R: sourcing files using a relative path

First letter to upper case

how do you send email from R

How to italicize part (one or two words) of an axis title

knitr/rmarkdown/Latex: How to cross-reference figures and tables?

R Latex Knitr R Markdown Cross Reference

alternative to "!is.null()" in R

Chopping a string into a vector of fixed width character elements

ggplot's qplot does not execute on sourcing

R Ggplot2 R Faq

Export CSV without col.names

Predict() - Maybe I'm not understanding it

How to drop columns by name in a data frame

R Dataframe Subset

Test if characters are in a string

R Regex String R Faq

Diagnosing R package build warning: "LaTeX errors when creating PDF version"

R Error Handling Package

store output of system command into a variable in r

R Variables System

Controlling line color and line type in ggplot legend

Adding time to POSIXct object in R

R Datetime Posixct

The R console is in my native language, how can I set R to English?

Windows R Localization Settings Rstudio

How to convert a huge list-of-vector to a matrix more efficiently?

R List Matrix Performance

Add a month to a Date

R Date Date Arithmetic

controlling order of facet_grid/facet_wrap in ggplot2?

Name columns within aggregate in R

R Rename Aggregate

Using `geom_line()` with X axis being factors

Manually setting group colors for ggplot2

R Colors Ggplot2

Find row and column index of maximum value in a matrix

Scale and size of plot in RStudio shiny

R Size Rstudio Shiny

Why does NaN^0 == 1

R Math Na Arithmetic Expressions

calculate the mean for each column of a matrix in R

R Dataframe Mean

checking CRAN incoming feasibility ... NOTE Maintainer

R Cran R Package

Putting x-axis at top of ggplot2 chart

Create an R package that depends on another R package located on GitHub

R Github Package

install.packages fails in knitr document: "trying to use CRAN without setting a mirror"

R and Python in one Jupyter notebook

Python R Python 2.7 Ipython Jupyter Notebook

How to disable scientific notation?

R Formatting Scientific Notation

Order Bars in ggplot2 bar graph

R Ggplot2 R Faq

Getting a function name as a string

Screening (multi)collinearity in a regression model

R Statistics Regression

Modifying fonts in ggplot2

Extract file extension from file path

R File Extension Built In

How to install development version of R packages github repository

R Github Ggplot2

Place a border around points

Error in grid.Call(L_textBounds, as.graphicsAnnot(x$label), x$x, x$y, : Polygon edge not found

How to fix spaces in column names of a data.frame (remove spaces, inject dots)?

Sum a list of matrices

When using "geom_histogram" there is error "unit(tic_pos.c, "mm") : 'x' and 'units' must have length > 0". Why

How do I name the "row names" column in r

Nested ifelse statement

R If Statement Nested Sas

data.frame Group By column

Rtools not being detected by R

Windows R Rstudio

Multi-row x-axis labels in ggplot line chart

How to read first 1000 lines of .csv file into R?

dplyr: nonstandard column names (white space, punctuation, starts with numbers)

R Dataframe Dplyr

Add panel border to ggplot2

Why are my dplyr group_by & summarize not working properly? (name-collision with plyr)

R Plyr Dplyr Shadowing Name Collision

ggplot2, change title size

R Data Visualization Ggplot2

How does one stop using rowwise in dplyr?

Left join using data.table

R Join Merge data.table

Emacs mode for R?

R dates "origin" must be supplied

Function to clear the console in R and RStudio

Plotting two variables as lines using ggplot2 on the same graph

R Ggplot2 Graph Time Series R Faq

Why do R objects not print in a function or a "for" loop?

R For Loop Printing R Faq

Convert factor to integer

R Integer Coercion

Adding greek character to axis title

R Unicode Labels Plotmath

How R formats POSIXct with fractional seconds

Merge data frames based on rownames in R

R Merge Dataframe

Rearrange dataframe to a table, the opposite of "melt"

R Dataframe Reshape

Split data.frame based on levels of a factor into new data.frames

R Dataframe R Faq

Replacing values from a column using a condition in R

R Dataframe Conditional Statements

how to delete a file with R?

R File File Manipulation

Combine column to remove NA's

Why does gc() not free memory?

R Garbage Collection

Select the top N values by group

How to convert a list consisting of vector of different lengths to a usable data frame in R?

R Vector Dataframe

Does ifelse really calculate both of its vectors every time? Is it slow?

R Performance If Statement Vectorization

Adding vertical line in plot ggplot

two-column layouts in RStudio presentations/slidify/pandoc

R Knitr Rstudio R Markdown Slidify

Summarize all group values and a conditional subset in the same call

How to get a regression summary in scikit-learn like R does?

Python R Scikit Learn Linear Regression Summary

Pass arguments to dplyr functions

R Dplyr Lazy Evaluation

Starting Shiny app after password input

R Passwords Shiny

Is there a command in R to view all the functions present in a package?

Extracting the last n characters from a string in R

R String Substring

How to check if object (variable) is defined in R?

How to access the last value in a vector?

R Dataframe Vector

How to get Leaflet for R use 100% of Shiny dashboard height

R Shiny Leaflet Shinydashboard

Extract Month and Year From Date in R

Install udunits2 package for R3.3

Add row to a data frame with total sum for each column

How do Rpy2, pyrserve and PypeR compare?

Python R Rpy2 Pyrserve Pyper

Aggregate Daily Data to Month/Year intervals

R: Break for loop

R For Loop Break

Splitting a continuous variable into equal sized groups

R Variables Split Continuous

R round to nearest .5 or .1

R Rounding R Faq

How to join (merge) data frames (inner, outer, left, right)

Sort (order) data frame rows by multiple columns

R Sorting Dataframe R Faq

How to Correctly Use Lists in R?

R List Data Structures Language Features Abstract Data-Type

Center Plot title in ggplot2

R Ggplot2 Center Ggtitle

R Not in subset

multithreading with R?

R markdown: Accessing variable from code chunk (variable scope)

R Knitr R Markdown

How to return a error message in R?

Meaning of ~. (tilde dot) argument?

How to convert R formula to text?

Create dynamic number of input elements with R/Shiny

R Dynamic Input Shiny

Cleaning up factor levels (collapsing multiple levels/labels)

R R Factor R Faq

Force character vector encoding from "unknown" to "UTF-8" in R

R Utf 8 Character Encoding data.table

How can one work fully generically in data.table in R with column names in variables

R data.table Calculated Columns Programmatically Created

Is it possible to use spread on multiple columns in tidyr similar to dcast?

R Reshape2 Tidyr

reshape2 melt warning message

R Reshape2 Melt

Argument is of length zero in if statement

How do I change the default library path for R packages

Using functions of multiple columns in a dplyr mutate_at call

How to replace all NA in a dataframe using tidyr::replace_na?

Opposite of %in%: exclude rows with values specified in a vector

R Dataframe Subset

How to reshape data from long to wide format

R Reshape R Faq

How do you print to stderr in R?

R Printing Stderr

How can I document data sets with roxygen?

R Documentation Generation R Package Roxygen

SQL Server RODBC Connection

How to paste a string on each element of a vector of strings using apply in R?

How do I generate a list with a specified increment step?

R + ggplot : Time series with events

R Ggplot2 Visualization Graphing

plot legends without border and with white background

Cannot install R-forge package using install.packages

R Svn Installation Package R Forge

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Remove all text before colon

R Unix Replace Sed Awk

How to suppress warnings when plotting with ggplot

Is there any authoritative documentation on R release nicknames?

How to pass command-line arguments when calling source() on an R file within another R file

Unexpected 'else' in "else" error

R + combine a list of vectors into a single vector

R List Vector Append Sapply

How to save a data frame as CSV to a user selected location using tcltk

R Csv Save Dataframe

tooltip on shiny R?

Aggregating by unique identifier and concatenating related values into a string

R Concatenation Aggregate

Issue when importing dataset: `Error in scan(...): line 1 did not have 145 elements`

R Import read.table

Remove empty elements from list with character(0)

What does the R function `poly` really do?

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Remove last N rows in data frame with the arbitrary number of rows

R Dataframe Row

How to visualize a large network in R?

R Graph Visualization Social Networking Graph Visualization

Replace missing values with column mean

R Missing Data Imputation

Error in file(file, "rt") : cannot open the connection

Format number in R with both comma thousands separator and specified decimals

run a for loop in parallel in R

R Parallel Processing Parallel Foreach

Forcing R output to be scientific notation with at most two decimals

R Decimal Scientific Notation

Include levels of zero count in result of table()

R Count Missing Data

Plotting a 3D surface plot with contour map overlay, using R

R 3d Statistics Plot

ggplot2: sorting a plot

Customize axis labels

Scale a series between two points

Overlay histogram with density curve

R Ggplot2 Histogram

How can I remove the legend title in ggplot2?

R Ggplot2 Legend

class in R: S3 vs S4

Count number of rows per group and add result to original data frame

R Count Aggregate R Faq

R: numeric 'envir' arg not of length one in predict()

How to collapse a list of characters into a single string in R

String R String Concatenation

Replace all values in a matrix <0.1 with 0

Putting mathematical symbols and subscripts mixed with regular letters

R Ggplot2 Mathematical Typesetting

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Explain a lazy evaluation quirk

R Lazy Evaluation

How to sort a character vector where elements contain letters and numbers in R?

R Sorting R Faq

Simple manual RMarkdown tables that look good in HTML, PDF and DOCX

R Knitr Pandoc R Markdown

How can I remove an element from a list?

R List Indexing R Faq

standard evaluation in dplyr: summarise a variable given as a character string

mutate_each / summarise_each in dplyr: how do I select certain columns and give new names to mutated columns?

R Dataframe Dplyr

Select subset of columns in data.table R

How to export RMarkdown file to HTML document with two columns?

Html R R Markdown

dplyr: how to reference columns by column index rather than column name using mutate?

How to use objects from global environment in Rstudio Markdown

R Rstudio Knitr

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Arranging rows in custom order using dplyr

R Dplyr Data Manipulation

Warning about UTF-8 with roxygen2

R Utf 8 Package Roxygen2

What techniques exists in R to visualize a "distance matrix"?

R Matrix Visualization Data Visualization

How to cbind or rbind different lengths vectors without repeating the elements of the shorter vectors?

Evaluate expression given as a string

How to save a plot as image on the disk?

R Plot Ggplot2 Lattice R Faq

Measuring function execution time in R

R Time Profiling

qqnorm and qqline in ggplot2

R Ggplot2 Ggproto

Namespaces in R packages

Function default arguments and named values

Is there a way to paste together the elements of a vector in R without using a loop?

R Paste Memory Efficient

Method to extract stat_smooth line fit

Inserting an image to ggplot2

backtransform `scale()` for plotting

Offline install of R package and dependencies

Generating all distinct permutations of a list in R

R tick data : merging date and time into a single object

R Statistics Time Series Finance

ggplot legends - change labels, order and title

making matplotlib graphs look like R by default?

Python R Matplotlib Plot Pandas

How can I make consistent-width plots in ggplot (with legends)?

Find the n most common values in a vector

R Count Ranking

Convert a numeric month to a month abbreviation

Formatting Decimal places in R

R Formatting Rounding R Faq

Error in installation a R package

R Installation Package

Concatenate strings by group with dplyr

Extract the first 2 Characters in a string

Change facet label text and background colour

Developing Geographic Thematic Maps with R

R Map Geolocation Geospatial

How to subtract years?

R Date Date Arithmetic R Faq

How to detect the right encoding for read.csv?

R Character Encoding read.csv

Remove quotes from a character vector in R

Add a dotted vertical line on certain x-axis values using ggplot

Apply function to each column in a data frame observing each columns existing data type

How to properly document S4 methods using roxygen2

R Generics Methods S4 Roxygen2

Seeing if data is normally distributed in R

R Normal Distribution

"Out of Memory Error (Java)" when using R and XLConnect package

Transparent equivalent of given color

R Colors Alpha Transparency

In R formulas, why do I have to use the I() function on power terms, like y ~ I(x^3)

R Formula Polynomials Tilde

Extract info inside all parenthesis in R

Get Object methods R

Venn diagram proportional and color shading with semi-transparency

R Plot Venn Diagram

Why is it not advisable to use attach() in R, and what should I use instead?

R Dataframe R Faq

Horizontal Barplot in ggplot2

Why is plyr so slow?

R Dataframe Plyr data.table

What does the function invisible() do?

import dat file into R

calculating number of days between 2 columns of dates in data frame

write.csv for large data.table

R File Io Csv Dataframe data.table

Warning: non-integer #successes in a binomial glm! (survey packages)

R Statistics Glm

Force ggplot2 scatter plot to be square shaped

R Ggplot2 Scatter Plot

How to select R data.table rows based on substring match (a la SQL like)

R data.table String Matching

How to deal with hdf5 files in R?

How to change the locale of R?

Right way to convert data.frame to a numeric matrix, when df also contains strings?

R If Statement Matrix Numeric

How to make geom_text plot within the canvas's bounds

R Text Plot Ggplot2

Can I get.seed() somehow?

Count number of records and generate row number within each group in a data.table

remove all line breaks (enter symbols) from the string using R

R Regex Line Breaks

count number of rows in a data frame in R based on group

R Dataframe Rowcount

Select unique values with 'select' function in 'dplyr' library

R Select Unique Dplyr

dply: order columns alphabetically in R

R Dataframe Dplyr

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R Rstudio Knitr

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What's the biggest R-gotcha you've run across?

Read SPSS file into R

detecting operating system in R (e.g. for adaptive .Rprofile files)

R Operating System

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R Ggplot2 Boxplot Scaletransform

Concatenate a vector of strings/character

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Interpolate product attributes

Convert data frame with date column to timeseries

Reset the graphical parameters back to default values without use of dev.off()

Moving files between folders

R File Io File Copying

Compare if two dataframe objects in R are equal?

R Dataframe Compare Equality

R strsplit with multiple unordered split arguments?

What is the knitr equivalent of `R CMD Sweave myfile.rnw`?

R numbers from 1 to 100

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R data.table Zoo

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Scatter plot with error bars

How to draw a crystal ball with two-color particles inside

R Matlab Plot Computer Vision

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R Generics Package S4 Roxygen2

Select every other element from a vector

Test for numeric elements in a character string

Sort a data.table fast by Ascending/Descending order

R Performance data.table

Use D3 and Shiny to implement `identify()` in R

Javascript R d3.js Shiny

Parallelism in Julia: Native Threading Support

Python Multithreading R Parallel Processing Julia

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R Matrix Transpose

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R Installation Package Zoo

Importing data into R from google spreadsheet

R Google Sheets

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R Animation Knitr Rgl Rnw

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R Ggplot2 Histogram

Using dplyr window functions to calculate percentiles