Yes, there is:  [**ESS**][1].

And it is very highly recommended.  And it does *a lot* more than just syntax highlighting so please read the [docs][2].

*Edit:* Some ten+ years later, installation got easier too:

    M-x package-refresh-contents ENTER
    M-x package-install ENTER ess ENTER

You may want some related packages, eg poly-mode is good for markdown support, but this is a start.

  [1]: http://ess.r-project.org
  [2]: http://ess.r-project.org/Manual/ess.html


What is the best way to create Velocity Template from a String?

I&#39;m aware of *Velocity.evaluate* method where I can pass String or StringReader, but I&#39;m curios is there a better way to do it (e.g. any advantage of creating an instance of Template).

How to use String as Velocity Template?

I have heard of types being referred to as &quot;boxed&quot; in some languages. 

In Java, I have heard of &quot;autoboxing&quot;. What is this? Is it having wrapper classes for a type? How would my code change if I&#39;m working with boxed or unboxed types?

What does it mean to say a type is &quot;boxed&quot;?

Is there a mode in emacs that does syntax highlighting for the R programming language? R-mode doesn&#39;t seem to work...

Emacs mode for R?

<p>Is there a mode in emacs that does syntax highlighting for the R programming language? R-mode doesn't seem to work...</p>


Without getting into a religious argument about why one is better than the other, what are the **practical** differences between Emacs and Vim? I&#39;m looking to learn one or the other, but I realize the learning curve for each is high and I can&#39;t decide. I have never used an editor of this type (I&#39;ve always used IDEs), so anything that helps a newbie is a plus.

----

Before a flame war starts: I&#39;m not asking which is better, I&#39;m asking the differences between the two. I would like an **objective** comparison.

Differences between Emacs and Vim

I have a non-emacs global search and replace function that causes my disk files to become more up-to-date than my emacs buffers (en masse).  Is there any way to tell emacs to refresh all the buffers from disk in one fell swoop, instead of having to do each one individually by reloading the file?

Thanks!
D

How to have Emacs auto-refresh all buffers when files have changed on disk?

How do you list the active minor modes in emacs?

I don&#39;t seem to be able to enable a go mode for emacs. C mode doesn&#39;t work without semicolons. The best I have found is the [JavaScript mode by Karl Landstrom][1], since JavaScript also doesn&#39;t require semicolons.


  [1]: http://www.brgeight.se/downloads/emacs/javascript.el

Enabling go mode for emacs

I am using emacs I find that sometimes I have 2 files separated into 2 windows.

For example:
I open 1 file using &lt;kbd&gt;C-x C-f file1.c RET&lt;/kbd&gt;

and I split the frame into two windows: &lt;kbd&gt;C-x 3&lt;/kbd&gt;

I then open another file &lt;kbd&gt;C-x C-f file2.c RET&lt;/kbd&gt;

So I have 2 files:

window 1 (left) `file1.c`

window 2 (right) `file2.c`

I am wondering if there is any key combination to swap the files over? Normally I like to work on the left window when I have 2 window. I know I can easily do &lt;kbd&gt;C-x o&lt;/kbd&gt;to move the cursor to the right window. 

However, I am just wondering if I can swap the files so that `file2.c` is in the left window and `file1.c` is in the right window?


How to swap the buffers in 2 windows emacs

Does anyone have any wisdom on workflows for data analysis related to custom report writing?  The use-case is basically this:

1.  Client commissions a report that uses data analysis, e.g. a population estimate and related maps for a water district.

2.  The analyst downloads some data, munges the data and saves the result (e.g. adding a column for population per unit, or subsetting the data based on district boundaries).

3.  The analyst analyzes the data created in (2), gets close to her goal, but sees that needs more data and so goes back to (1).

4.  Rinse repeat until the tables and graphics meet QA/QC and satisfy the client.

5.  Write report incorporating tables and graphics.

6.  Next year, the happy client comes back and wants an update.  This should be as simple as updating the upstream data by a new download (e.g. get the building permits from the last year), and pressing a &quot;RECALCULATE&quot; button, unless specifications change.

At the moment, I just start a directory and ad-hoc it the best I can.  I would like a more systematic approach, so I am hoping someone has figured this out...  I use a mix of spreadsheets, SQL, ARCGIS, R, and Unix tools.

Thanks!

PS:

Below is a basic Makefile that checks for dependencies on various intermediate datasets (w/ `.RData` suffix) and scripts (`.R` suffix).  Make uses timestamps to check dependencies, so if you `touch ss07por.csv`, it will see that this file is newer than all the files / targets that depend on it, and execute the given scripts in order to update them accordingly.  This is still a work in progress, including a step for putting into SQL database, and a step for a templating language like sweave. Note that Make relies on tabs in its syntax, so read the manual before cutting and pasting. Enjoy and give feedback!

http://www.gnu.org/software/make/manual/html_node/index.html#Top

&lt;pre&gt;
R=/home/wsprague/R-2.9.2/bin/R

persondata.RData : ImportData.R ../../DATA/ss07por.csv Functions.R
   $R --slave -f ImportData.R

persondata.Munged.RData : MungeData.R persondata.RData Functions.R
      $R --slave -f MungeData.R

report.txt:  TabulateAndGraph.R persondata.Munged.RData Functions.R
      $R --slave -f TabulateAndGraph.R &gt; report.txt

&lt;/pre&gt;

Workflow for statistical analysis and report writing

If I am running a long R script from the command line (`R --slave script.R`), then how can I get it to give line numbers at errors?  

I don&#39;t want to add debug commands to the script if at all possible; I just want R to behave like most other scripting languages.

How to get R script line numbers at error?

Sometimes on an R help page the phrase &quot;not run&quot; appears in comments. Check out this from the help page for &quot;with()&quot;:

    Examples
    require(stats); require(graphics)
    #examples from glm:
    **## Not run:** 
    library(MASS)
    with(anorexia, {
        anorex.1 &lt;- glm(Postwt ~ Prewt + Treat + offset(Prewt),
                        family = gaussian)
        summary(anorex.1)
    })
    ## End(**Not run**)


What does the &quot;not run&quot; mean in the example code?

What does &quot;not run&quot; mean in R help pages?

Periodically I program sloppily. Ok, I program sloppily all the time, but sometimes that catches up with me in the form of out of memory errors. I start exercising a little discipline in deleting objects with the `rm()` command and things get better. I see mixed messages online about whether I should explicitly call `gc()` after deleting large data objects. Some say that before R returns a memory error it will run `gc()` while others say that manually forcing `gc` is a good idea. 

Should I run `gc()` after deleting large objects in order to ensure maximum memory availability?



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

A friend sent me along this great tutorial on [webscraping *The New York Times* with R][1]. I would really love to try it. However, the first step is to install a package called [RJSONIO][2] from source.

I know R reasonably well, but I have no idea how to install a package from source.

I&#39;m running Mac OS X.

  [1]: https://web.stanford.edu/~cengel/cgi-bin/anthrospace/scraping-new-york-times-articles-with-r
  [2]: https://cran.r-project.org/web/packages/RJSONIO/




Content Type	Original Author	Original Content on Stackoverflow
Question	Wilduck	View Question on Stackoverflow
Solution 1 - Emacs	Dirk Eddelbuettel	View Answer on Stackoverflow

Emacs mode for R?

Emacs Problem Overview

Emacs Solutions

Solution 1 - Emacs

What does it mean to say a type is "boxed"?

How to use String as Velocity Template?

Attributions