rockchalk

1.8.164

Regression Estimation and Presentation

6packages depend

209.2Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Paul E. JohnsonFirst published 2011-11-0327 releasesCRAN page ↗

A collection of functions for interpretation and presentation of regression analysis. These functions are used to produce the statistics lectures in <https://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 'rockchalk' offers a fairly comprehensive overview. The vignette 'Rstyle' has advice about coding in R. The package title 'rockchalk' refers to our school motto, 'Rock Chalk Jayhawk, Go K.U.'.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("rockchalk")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# one-time r2u setup for Ubuntu (noble)

curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash

# then install

sudo apt install r-cran-rockchalk

Fast Ubuntu binaries via r2u (no compilation). Run the setup once per machine.

bspm (used by r2u) also needs make: sudo apt install make

sudo dnf copr enable iucar/cran

sudo dnf install R-CRAN-rockchalk

RPMs from the iucar/cran COPR, rebuilt from CRAN.

sudo zypper install R-rockchalk

RPMs auto-built from CRAN on openSUSE OBS.

Health

CRAN checks

13OK

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Yes

Vignettes

README

Dependencies · direct

Check history

OK2026-06-08
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 1 FAILURE
WARNING2026-06-07
12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-23
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-10
0 OK · 6 NOTE · 0 WARNING · 8 ERROR · 0 FAILURE

Downloads

209.2K

CRAN downloads in the past year

Rank #879 · ~573/day · ~17.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

16.4K30 days

59.6K90 days

209.2K1 year

Also on584 r2u17 autocran2.1K conda_forge104 c2d4u

Source & community

Repository stars, issues, and contributor activity are not tracked yet.

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (7)

grDevices basemethods baselme4 carData MASS basekutils reformulas

LinkingTo (0)

none

Suggests (6)

tables Hmisc car mvtnorm scatterplot3d HH

Enhances (0)

none

Reverse dependencies

6direct

–indirect (not tracked)

MethodCompare negligible r2mlm rewie semPlot kutils

Code

42,278Lines of code

58Exported functions

Code & tests

Open call graph →

Line coverage

–

Expression

–

Tests / Examples

–

Functions

94 58 exported

Complexity

9.6 avg / 123 max

Call network

94 nodes / 73 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Loading call graph…

Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (3)

Maintainer (1)

Paul E. Johnson

Author, Maintainer

Contributors (2)

Gabor Grothendieck

Contributor

Dimitri Papadopoulos OrfanosGabor

Contributor

Release timeline

27 releases. Pick two to compare their code metrics; R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.8.164Latest
2026-04-16 · current release
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
1.8.157
2022-08-06 · diff ↗
1.8.152
2022-05-20 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.8.151
2022-02-14 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
1.8.144
2019-03-08 · diff ↗
1.8.140
2019-02-19 · diff ↗
1.8.129
2018-11-09 · diff ↗
1.8.117
2018-09-13 · diff ↗

Show 26 earlier events

1.8.111
2018-05-14 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.8.110
2017-11-21 · diff ↗
1.8.109
2017-11-16 · diff ↗
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
1.8.101
2016-02-25 · diff ↗
1.8.98
2016-02-09 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.8.92
2015-02-13 · diff ↗
1.8.91
2015-01-30 · diff ↗
1.8.86
2014-08-13 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.8.0
2013-07-30 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.6.3
2013-03-22 · diff ↗
1.6.2
2012-06-19 · diff ↗
1.6
2012-06-12 · diff ↗
1.5.4
2012-04-10 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.5.2
2012-03-16 · diff ↗
1.4
2012-01-24 · diff ↗
1.3.2
2011-12-07 · diff ↗
1.3.1
2011-12-02 · diff ↗
1.1
2011-11-11 · diff ↗
1.0
2011-11-03

Package metadata

First published: 2011-11-03
Total releases: 27 / 15 yrs
License: GPL (>= 3.0)
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet