Wow how time has flown. It’s been almost three years since the last update to msos R package, which was the second ever R package I created. msos serves as the companion package to Professor Emeritus John Marden’s Multivariate Statistics: Old School, which is used in STAT 571: Multivariate Analysis course at the University of Illinois at Urbana-Champaign (UIUC). Within this update, the package internals were greatly improved. The crux of the work was in ensuring code style consistency throughout the …