The goal of PSMOptimalCalipers is to reproduce and extend figure 2 of the 2011 paper by Peter C. Austin “Optimal caliper widths for propensity-score matching when estimating differences in means and differences in proportions in observational studies”.
You can install the development version from GitHub with:
# install.packages("devtools")
devtools::install_github("kkbrum/PSMOptimalCalipers")