dplyrExtras

Some extra functionality that was mainly helpful for older dplyr versions can still be useful but is somewhat less relevant now:

mutate_rows mutate selected rows (see tidyverse/dplyr#425)

Note 1: The function was originally called mutate_if. It was renamed to mutate_rows since dplyr 0.5 introduced an own mutate_if function with quite different behavior.
s_filter, s_arrange ,... allowing string arguments (see tidyverse/dplyr#333)

To install in R, first install the package devtools from CRAN and then run

library(devtools);
install_github(repo="skranz/dplyrExtras")