shellgame: The Shell Game - Audit Geographic Data Transformations

Reveals how data quality silently degrades during geographic transformations while variable labels remain unchanged. Demonstrates that transformation error is agnostic to both the variable (population, income, etc.) and the tool ('R', 'Python', etc.). Provides a reproducible audit framework for quantifying the shift from observed to imputed data at each transformation hop.

Version: 0.1.1
Depends: R (≥ 4.0.0)
Imports: dplyr (≥ 1.0.0), ggplot2, janitor, magrittr, rlang, stringr, tidycensus, utils
Suggests: geoDeltaAudit, knitr, readr, rmarkdown, spelling, testthat (≥ 3.0.0)
Published: 2026-05-27
DOI: 10.32614/CRAN.package.shellgame (may not be active yet)
Author: Phinn Markson ORCID iD [aut, cre]
Maintainer: Phinn Markson <markson.2 at osu.edu>
BugReports: https://github.com/phinnphace/shellgame/issues
License: MIT + file LICENSE
URL: https://github.com/phinnphace/shellgame
NeedsCompilation: no
Language: en-US
Materials: README, NEWS
CRAN checks: shellgame results

Documentation:

Reference manual: shellgame.html , shellgame.pdf
Vignettes: The Shell Game: conceptual framework (source, R code)
Hennepin example (source, R code)

Downloads:

Package source: shellgame_0.1.1.tar.gz
Windows binaries: r-devel: not available, r-release: shellgame_0.1.1.zip, r-oldrel: not available
macOS binaries: r-release (arm64): shellgame_0.1.1.tgz, r-oldrel (arm64): shellgame_0.1.1.tgz, r-release (x86_64): shellgame_0.1.1.tgz, r-oldrel (x86_64): shellgame_0.1.1.tgz

Linking:

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