The DESCRIPTION file:
tools:::Rd_package_DESCRIPTION("submax")
tools:::Rd_package_indices("submax")
The main function is submax(). Also helpful is score(). See their documentation.
References
Lee, K., Small, D. S., & Rosenbaum, P. R. (2018) <doi:10.1111/biom.12884> A powerful approach to the study of moderate effect modification in observational studies. Biometrics, 74(4), 1161-1170.