Profiling Compliers and Non-Compliers for Instrumental Variable Analysis R package ivdesc version 1.1.2 CRAN Task View: CausalInference (https://CRAN.R-project.org/view=CausalInference) Estimating the mean and variance of a covariate for the complier, never-taker and always-taker subpopulation in the context of instrumental variable estimation. This package implements the method described in Marbach and Hangartner (2020) <doi:10.1017/pan.2019.48> and Hangartner, Marbach, Henckel, Maathuis, Kelz and Keele (2021) <doi:10.48550/arXiv.2103.06328>. Software Depends: R (>= 3.4.0) Imports: knitr (>= 1.20.8), purrr (>= 0.2.5), rsample (>= 0.0.3) Suggests: haven Moritz Marbach <m.marbach@ucl.ac.uk> Comprehensive R Archive Network (CRAN) Moritz Marbach [aut, cre] (ORCID: <https://orcid.org/0000-0002-7101-2821>) GPL-3 2025-07-22 application/tgz https://CRAN.R-project.org/package=ivdesc doi:10.32614/CRAN.package.ivdesc