dplyr.root implements the inteface of the dplyr package for ROOT files backend. For more information on ROOT see https://root.cern.ch.
Currently, only the most basic functionallity is implemented:
filter, mutate, select and derivatives.
For any other operations, e.g. group_by, summarise or joins, the data has
to be first read in memory with collect().
Selections can be cached internally (using TEntryList) with collapse().
You must have ROOT installed on the system before installing RootTreeToR.
You can install the latest development version from github with
devtools::install_github("rmatev/RootTreeToR")
devtools::install_github("rmatev/dplyr.root")