New posts in plyr

Sum of rows based on column value

Standard error bars using stat_summary

Replace missing values (NA) in one data set with values from another where columns match

R use ddply or aggregate

r aggregate plyr

Reshape multiple categorical variables to binary response variables

r plyr reshape reshape2

R: Split unbalanced list in data.frame column

r dataframe plyr

Split Data Frame into Rows of Fixed Size

r split dataframe plyr

Aggregate a dataframe on a given column and display another column

r aggregate plyr greatest-n-per-group

Returning first row of group

r aggregate plyr

R: speeding up "group by" operations

performance r plyr

Get the means of sub groups of means in R

r aggregate plyr mean

Joining aggregated values back to the original data frame [duplicate]

Why is plyr so slow?

r dataframe plyr data.table

Create columns from factors and count [duplicate]

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

r coding-style naming-conventions plyr

meaning of ddply error: 'names' attribute [9] must be the same length as the vector [1]

How to strsplit different number of strings in certain column by do function

Count number of rows by group using dplyr

r dplyr count plyr

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