inters is an R package with tools to estimate interactions. Currently, it implements the post-double-selection approach to estimating interactions described in this forthcoming paper by Matthew Blackwell and Michael Olson. To install the development version of inters, run the following code in R:

require(devtools)
install_github("mattblackwell/inters", build_vignettes = TRUE)

You can find an example of how to use the package in our vignette.