sure {sure}

sure: An R package for constructing surrogate-based residuals and diagnostics for ordinal and general regression models.

Description

The sure package provides surrogate-based residuals for fitted ordinal and general (e.g., binary) regression models of class clm, glm, lrm, orm, polr, or vglm.

Details

The development version can be found on GitHub: https://github.com/AFIT-R/sure. As of right now, sure exports the following functions:

• resids - construct (surrogate-based) residuals;

• autoplot - plot diagnostics using ggplot2-based graphics;

• gof - simulate p-values from a goodness-of-fit test.

References

Liu, Dungang and Zhang, Heping. Residuals and Diagnostics for Ordinal Regression Models: A Surrogate Approach. Journal of the American Statistical Association (accepted).