Calculate (stratified) percentiles on a data.frame
Stratification will split the data.frame into subgroups and calculate percentiles for each independently.
percentiles
R package to calculate (stratified) percentiles
very short installation instructions
clone the 'percentiles' repository
build the source or binary file using Rtools
install the package using install.packages("path/to/package_file", repos=NULL)
call library(percentiles) in your code and use like with any other package