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Upsilon

0.1.1

Another Test of Association for Count Data

0packages depend
3.2Kdownloads / year
46.1%test coverage
13/13checks pass

Overview

About
Maintained by Joe SongFirst published 2026-01-062 releasesCRAN page ↗

The Upsilon test assesses association among categorical variables against the null hypothesis of independence (Luo 2021 MS thesis; ProQuest Publication No. 28649813). While promoting dominant function patterns, it demotes non-dominant function patterns. It is robust to low expected count---continuity correction like Yates's seems unnecessary. Using a common null population following a uniform distribution, contingency tables are comparable by statistical significance---not the case for most association tests defining a varying null population by tensor product of observed marginals. Although Pearson's chi-squared test, Fisher's exact test, and Woolf's G-test (related to mutual information) are useful in some contexts, the Upsilon test appeals to ranking association patterns not necessarily following same marginal distributions, such as in count data from DNA and RNA sequencing---a rapidly expanding frontier in modern science.

Install

Health

CRAN checks
13OK
Slowest check: 3.8 min · r-devel-windows-x86_64
Code health
Yes
Tests · ratio 0.08
46.1%
Coverage · measured lines
100%
Documentation · exports
3
Dependencies · direct
Check history
  • OK2026-08-05
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-08-01
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-04-22
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-04-18
    13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
96%
Return-value docs
100%
References docs
67%

Downloads

3.2K
CRAN downloads in the past year
Rank #10,188 · ~9/day · ~263/mo
Daily download trend is not available in this view yet.
10030 days
96290 days
3.2K1 year
Compare downloads with other packages →
Also on251 r2u11 autocran

Dependencies

Declared dependencies
12 external dependencies (excludes base and recommended)
Depends (0)
none
LinkingTo (1)
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (2)
Maintainer (1)
Author, Maintainer
Authors (2)
Author, Maintainer
Author
Package Timeline

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

  • R
    R 4.6.0 released · 2026-04-24
  • 0.1.1Latest
    2026-03-07 · current release · diff ↗
  • 0.1.0
    2026-01-06
  • R
    R 4.5.0 released · 2025-04-11

Package metadata

First published
2026-01-06
Total releases
2 / 1 yrs
License
LGPL (>= 3) OSI
Download size
482 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("Upsilon")
Song, J., & Luo, X. (2026). Upsilon: Another Test of Association for Count Data (Version 0.1.1) [Computer software]. https://doi.org/10.32614/CRAN.package.Upsilon

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

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

APA

Balamuta, J. J. (2026). R Observatory: Metrics for Upsilon version 0.1.1 [Data set]. HJJB, LLC. Data release v2026-08-13. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-13, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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