R Observatory: Metrics for Keng version 2026.9.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

Keng

2026.9.0Package record

Knock Errors Off Nice Guesses

0packages depend

4Kdownloads / year

75.8%test coverage

13/13flavors OK

Overview

About

Maintained by Qingyao ZhangCRAN page ↗GitHub ↗Issues ↗

Miscellaneous functions and data used in psychological research and teaching. Keng currently has four built-in datasets, and could (1) scale a vector; (2) divide a vector into three groups, (3) compute the cut-off values of Pearson's r with known sample size; (4) test the significance and compute the post-hoc power for Pearson's r with known sample size; (5) conduct a priori power analysis and plan the sample size for Pearson's r; (6) compare lm()'s fitted outputs using R-squared, f_squared, post-hoc power, and PRE (Proportional Reduction in Error, also called partial R-squared or partial Eta-squared); (7) calculate PRE from partial correlation, Cohen's f, or f_squared; (8) conduct a priori power analysis and plan the sample size for one or a set of predictors in regression analysis; (9) conduct post-hoc power analysis for one or a set of predictors in regression analysis with known sample size; (10) randomly pick numbers for Chinese Super Lotto and Double Color Balls; (11) assess course objective achievement in Outcome-Based Education.

Changes in 2026.9.0

New data has been added.

From NEWS.md in the release

Install

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

install.packages("Keng", repos = "https://cloud.r-project.org/")

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("qyaozh/Keng")

Development version from qyaozh/Keng. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-keng

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-Keng

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

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-Keng

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 1.6 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2026.9.0

READMEYes · 393 wordsVignettesYes · 5 · dynamicNEWSYes · 100% structured · mentions 2026.9.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 23
Examples that run: 100%15 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 43%

Vignettes (5)

How these are measured

Downloads

4K

CRAN downloads in the past year

Rank #11,380 · ~11/day · ~337/mo

Releases R versions

Daily download trend is not available in this view yet.

32030 days

94790 days

4K1 year

Compare downloads with other packages →

Also on98 r2u8 autocran

How downloads are counted

Repository

qyaozh/keng ↗Account: qyaozh

0Stars

0Forks

2Open issues

0Open PRs

10Releases

217Commits

3Commit identities

License file reads as CC-BY-4.0 · 217 commits · Last activity 2026-09-05

Responsiveness

not measured

Releases over time

2025-10-09 · 82026-09-01 · 10

How these are measured

PracticesBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/qyaozh/keng on 2026-10-21.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing Keng adds no packages beyond those that come with R.

Depends (1)

R >= 3.5

Imports (1)

stats

LinkingTo (0)

none

Suggests (7)

ggplot2 knitr rmarkdown car effectsize tidyr testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (1)

Qingyao Zhang

Author, Maintainer since 2024.10.16 (2024)

Releases (10)

Pick two releases to compare their code metrics.

2026.9.0Latest
record
2026-09-01 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
2026.3.19
record
2026-03-19 · diff ↗ ·
added 1 export
divide
2025.10.8
record
2025-10-09 · diff ↗ ·
added 2 exports
powered_lm, powered_r
2025.9.1
record
2025-08-31 · diff ↗ ·
added 1 export
assess_coa
2025.8.16
record
2025-08-20 · diff ↗ ·
added 2 exports
pick_dcb, pick_sl
R
R 4.5.0 released · 2025-04-11
2024.12.15
record
2024-12-15 · diff ↗ ·
added 1 export
power_r
2024.11.25
record
2024-11-24 · diff ↗ ·
added 2 exports
calc_PRE, power_lm
2024.11.17
record
2024-11-17 · diff ↗ ·
added 1 export
Scale
2024.11.02
record
2024-11-04 · diff ↗ ·
removed 1 export
test_PRE

added 1 export
compare_lm
2024.10.16
record
2024-10-17
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-10-17
Total releases: 10 / 2 yrs
License: CC BY 4.0
Minimum R: ≥ 3.5
Bundled data: 118 KB / 8 files
Download size: 245 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("Keng")

Format

Zhang, Q. (2026). Keng: Knock Errors Off Nice Guesses (Version 2026.9.0) [Computer software]. https://doi.org/10.32614/CRAN.package.Keng

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for Keng version 2026.9.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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