Comparison of groups cg is comprehensive data analysis software, and stands for "compare groups." Its genesis and evolution are driven by common needs to compare administrations, conditions, etc. in medicine research & development. The current version provides comparisons of unpaired samples, i.e. a linear model with one factor of at least two levels. Good data graphs, modern statistical methods, and useful displays of results are emphasized. Software Depends: R (>= 2.14.0), Hmisc, base, utils, methods, stats, graphics, grid, lattice, MASS, survival, multcomp, nlme Imports: VGAM (>= 0.8-6) Bill Pikounis and John Oleynick <cg@billpikounis.net> Bill Pikounis and John Oleynick <cg@billpikounis.net> GPL (>= 2) 2012-03-11 application/tgz http://CRAN.R-project.org/package=cg