This R package allows basic manipulations and displays of gene lists produced by the VEGAS software for VErsatile Gene-base Association Studies as decribed by Liu et al. 2010.
To install VEGAStools from github, you need the devtools package in your R environment. If you have not done so yet, start a fresh R session and run
install.packages("devtools")
This will install the developer tools and their dependencies. Now you can easily install VEGAStools via
devtools::install_github("alexploner/VEGAStools")
and you are good to go.