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All Plyr Solutions on Gang of Coders
Total of 12 Plyr Solutions
Aggregate a dataframe on a given column and display another column
R
Aggregate
Plyr
Greatest N-per-Group
How to select the rows with maximum values in each group with dplyr?
R
Dplyr
Plyr
Greatest N-per-Group
Reshape three column data frame to matrix ("long" to "wide" format)
R
Matrix
Dataframe
Plyr
Reshape
Applying a function to every row of a table using dplyr?
R
Plyr
Dplyr
Change value of variable with dplyr
R
Dataframe
Plyr
Dplyr
dplyr summarise: Equivalent of ".drop=FALSE" to keep groups with zero length in output
R
Dplyr
Plyr
Tidyr
Count number of rows by group using dplyr
R
Dplyr
Count
Plyr
dplyr: "Error in n(): function should not be called directly"
R
Function
Plyr
Dplyr
Conflicting Libraries
What does the dot mean in R – personal preference, naming convention or more?
R
Coding Style
Naming Conventions
Plyr
How to create a lag variable within each group?
R
data.table
Plyr
Dplyr
Why are my dplyr group_by & summarize not working properly? (name-collision with plyr)
R
Plyr
Dplyr
Shadowing
Name Collision
Why is plyr so slow?
R
Dataframe
Plyr
data.table