TY - JOUR AU - Sekhon, Jasjeet S. PY - 2011/06/14 Y2 - 2024/03/28 TI - Multivariate and Propensity Score Matching Software with Automated Balance Optimization: The Matching package for R JF - Journal of Statistical Software JA - J. Stat. Soft. VL - 42 IS - 7 SE - Articles DO - 10.18637/jss.v042.i07 UR - https://www.jstatsoft.org/index.php/jss/article/view/v042i07 SP - 1 - 52 AB - <b>Matching</b> is an R package which provides functions for multivariate and propensity score matching and for finding optimal covariate balance based on a genetic search algorithm. A variety of univariate and multivariate metrics to determine if balance actually has been obtained are provided. The underlying matching algorithm is written in C++, makes extensive use of system BLAS and scales efficiently with dataset size. The genetic algorithm which finds optimal balance is parallelized and can make use of multiple CPUs or a cluster of computers. A large number of options are provided which control exactly how the matching is conducted and how balance is evaluated. ER -