rockchalk: Regression Estimation and Presentation

A collection of functions for ease of presentation and interpretation of regression analysis. These functions are used to produce the statistics lectures in There are functions to explore the effect (or lack thereof) from "mean centering," "residual centering", and standardization. The vignette "rockchalk" offers a fairly comprehensive overview. The vignette "Rstyle" has advice about coding in R. See the outreg function for a convenient way to generate regression models for reports. For nice, easy to use pictures, see plotSlopes, plotCurves, plotPlane. The package title "rockchalk" refers to our school motto, "Rock Chalk Jayhawk, Go K.U.".

Version: 1.8.86
Depends: R (≥ 2.10)
Imports: grDevices, lme4, car, MASS
Published: 2014-08-13
Author: Paul E. Johnson
Maintainer: Paul E. Johnson <pauljohn at>
License: GPL (≥ 3.0)
NeedsCompilation: no
Materials: NEWS ChangeLog
CRAN checks: rockchalk results


Reference manual: rockchalk.pdf
Vignettes: Rchaeology
Using rockchalk
Package source: rockchalk_1.8.86.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: rockchalk_1.8.86.tgz, r-oldrel: rockchalk_1.8.86.tgz
OS X Mavericks binaries: r-release: rockchalk_1.8.86.tgz
Old sources: rockchalk archive

Reverse dependencies:

Reverse imports: semPlot