rms

Regression Modeling Strategies

Current Goals

• A non-downward compatible change will occur in the next release of the package
• The survfit.formula function (seen by the user as just survfit) for obtaining nonparametric survival estimates will be replaced by the npsurv function
• The purpose is to avoid conflicts with the survival package
• survfit.coxph has a new id option that generalizes individual=TRUE; need to change survfit.cph and survest.cph to use that

Web Sites

• Overall: http://biostat.mc.vanderbilt.edu/Rrms
• Book: http://biostat.mc.vanderbilt.edu/rms
• CRAN: http://cran.r-project.org/web/packages/rms
• Changelog: https://github.com/harrelfe/rms/commits/master

To Do

• Fix survplot so that explicitly named adjust-to values are still in subtitles. See tests/cph2.s.
• Fix fit.mult.impute to average sigma^2 and then take square root, instead of averaging sigma
• Implement user-added distributions in psm - see harrelfe#41