@@ -19916,3 +19916,37 @@ recoding. We are eager to have community feedback about the variable key and
the vignette about it. In version 1.67, the function semTable() is deprecated.
We have proposed a new package of that name.")
(license license:gpl2)))
+
+(define-public r-rockchalk
+ (package
+ (name "r-rockchalk")
+ (version "1.8.144")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (cran-uri "rockchalk" version))
+ (sha256
+ (base32
+ "07dp1n155b9gfvk8l30h6bhjbhbylsjxfzns08mryn4mxj3nqpnb"))))
+ (properties `((upstream-name . "rockchalk")))
+ (build-system r-build-system)
+ (propagated-inputs
+ `(("r-cardata" ,r-cardata)
+ ("r-kutils" ,r-kutils)
+ ("r-lme4" ,r-lme4)
+ ("r-mass" ,r-mass)))
+ (home-page
+ "https://cran.r-project.org/package=rockchalk")
+ (synopsis
+ "Regression Estimation and Presentation")
+ (description
+ "This package provides a collection of functions for interpretation and
+presentation of regression analysis. These functions are used to produce the
+statistics lectures in <http://pj.freefaculty.org/guides>. Includes regression
+diagnostics, regression tables, and plots of interactions and \"moderator\"
+variables. The emphasis is on \"mean-centered\" and \"residual-centered\"
+predictors. The vignette @code{rockchalk} offers a fairly comprehensive
+overview. The vignette @code{Rstyle} has advice about coding in R. The
+package title @code{rockchalk} refers to our school motto, \"Rock Chalk
+Jayhawk, Go K.U.\".")
+ (license license:gpl3+)))