ggspec: Extract and Compare 'ggplot2' Plot Specifications as Tidy Data Frames
Inspects 'ggplot' objects by extracting their full declarative specification - layers, aesthetic mappings, scales, facets, coordinate systems, and labels - as tidy data frames. A second tier of functions enables structural comparison of two 'ggplot' objects, supporting automated plot testing, auditing, and framework-agnostic grading workflows. Unlike 'ggcheck', which is designed exclusively for 'learnr'/'gradethis' pipelines and returns ad-hoc objects, 'ggspec' returns rectangular, pipeable output and does not require any grading framework as a dependency.
| Version: | 0.1.0 |
| Depends: | R (≥ 4.1.0) |
| Imports: | ggplot2 (≥ 3.4.0), rlang (≥ 1.1.0), tibble (≥ 3.2.0), dplyr (≥ 1.1.0) |
| Suggests: | learnr, palmerpenguins, testthat (≥ 3.0.0), knitr, rmarkdown, MASS, covr |
| Published: | 2026-05-28 |
| DOI: | 10.32614/CRAN.package.ggspec |
| Author: | Clement Lee  [aut,
cre] |
| Maintainer: | Clement Lee <clement.lee.tm at outlook.com> |
| BugReports: | https://github.com/clement-lee/ggspec/issues |
| License: | MIT + file LICENSE |
| URL: | https://github.com/clement-lee/ggspec |
| NeedsCompilation: | no |
| Materials: | README, NEWS |
| CRAN checks: | ggspec results |
Documentation:
| Reference manual: | ggspec.html , ggspec.pdf |
| Vignettes: |
Equivalence Patterns and Canonicalisation Modes (source, R code) Extracting Plot Specifications with ggspec (source, R code) Plot Grading and Testing with ggspec (source, R code) |
Downloads:
| Package source: | ggspec_0.1.0.tar.gz |
| Windows binaries: | r-devel: ggspec_0.1.0.zip, r-release: ggspec_0.1.0.zip, r-oldrel: ggspec_0.1.0.zip |
| macOS binaries: | r-release (arm64): ggspec_0.1.0.tgz, r-oldrel (arm64): ggspec_0.1.0.tgz, r-release (x86_64): ggspec_0.1.0.tgz, r-oldrel (x86_64): ggspec_0.1.0.tgz |
Linking:
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