tern.rbmi
Reference-based multiple imputation tables, shipping only what CRAN checks demand.
Comparison · Analytics
cairo vs grex
A side-by-side editorial comparison of cairo and grex — release velocity, themes, recent moves, and the top alternatives to consider.
cairo vs grex: at a glance
What is cairo?
Cairo finally catches R's graphics engine, all the way to GE API 16.
Cairo is the R device that renders plots through the cairo library, and until 1.7-0 it lagged R's own graphics engine by several API generations. That release closes the gap to GE API 16 (R 4.5.0), adding fill patterns, masks and groups. The releases before it were maintenance: a segfault shim for grid, a bashism removal in configure, and Windows font and build fixes.
What is grex?
grex is a lookup table with a version number — it ships when the annotation moves.
grex converts the deprecated Ensembl gene IDs found in GTEx data into current gene symbols and identifiers, using org.Hs.eg.db as its reference. Its value is entirely in that bundled reference data, so a release either refreshes the mapping or does nothing to it. The 2025 release does nothing to it: GitHub Actions for the docs site, a check-note fix, and a smaller vignette.
cairo vs grex: editorial side-by-side
cairo
0.0ANALYTICS
Cairo finally catches R's graphics engine, all the way to GE API 16.
◆ Current state
Cairo is the R device that renders plots through the cairo library, and until 1.7-0 it lagged R's own graphics engine by several API generations. That release closes the gap to GE API 16 (R 4.5.0), adding fill patterns, masks and groups. The releases before it were maintenance: a segfault shim for grid, a bashism removal in configure, and Windows font and build fixes.
◆ Where it's heading
The arc is catch-up, executed one API generation at a time. Glyph rendering arrived in 1.6-3, GE 15 stubs in 1.6-5 existed only to stop grid from segfaulting, and 1.7-0 delivers the real GE 13/14/16 feature set rather than placeholders. Alongside that, dropping the CAIROGD_VER C API and the mkdist step means the package now builds with plain R CMD build, which reads as deliberate reduction of maintenance overhead.
◆ Prediction
Expect the next releases to be corrective rather than additive: the entries show every API adoption here has been followed by a fix release, and patterns, masks and groups are a much larger surface than glyphs were.
grex
0.0ANALYTICS
grex is a lookup table with a version number — it ships when the annotation moves.
◆ Current state
grex converts the deprecated Ensembl gene IDs found in GTEx data into current gene symbols and identifiers, using org.Hs.eg.db as its reference. Its value is entirely in that bundled reference data, so a release either refreshes the mapping or does nothing to it. The 2025 release does nothing to it: GitHub Actions for the docs site, a check-note fix, and a smaller vignette.
◆ Where it's heading
The annotation refreshes stopped. Between 2017 and 2019 the package tracked org.Hs.eg.db through four versions and added the GTEx V7 identifier set; since then the reference has stood still while the releases turned to packaging. That gap matters more here than it would elsewhere — a stale mapping table silently returns outdated symbols rather than failing, so the package's core asset ages invisibly.
◆ Prediction
Nothing in these entries signals a planned data refresh, and the six-year pattern suggests the next release will again be infrastructure. Users needing current annotations should check which org.Hs.eg.db version is bundled rather than assume the version number reflects it.
Alternatives to cairo and grex
Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either cairo or grex.
tern.mmrm
An MMRM tabulation package that has published nothing since its 2024 CRAN releases.
ggmagnify
A single-purpose ggplot2 inset tool, refining the same three arguments.
symengine
An R symbolic-maths binding whose changelog is really the C++ core's release notes.
gtfstools
gtfstools stopped guarding its own object model and started accepting everyone else's.
quantities
The glue package that makes R carry units and uncertainty through the same calculation.
Recent activity from cairo and grex
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9mo agocairoCairo adds fill patterns, masks and groups (GE API 16) ⚡
- 11mo agocairoCairo 1.6-4: configure cleanup, locatorBell dropped on X11
- 11mo agocairoCairo 1.6-5 stubs GE 15 to stop grid segfaulting
- 1y agogrexgrex 1.9.1: pkgdown on Actions, smaller vignette
- 2y agocairoCairo 1.6-2
- 2y agocairoCairo 1.6-3 adds glyph rendering for grid.glyph()
- 7y agogrexgrex 1.9 refreshes the reference to org.Hs.eg.db 3.8.2
- 8y agogrexgrex 1.8 adds GTEx V7 IDs, updates to org.Hs.eg.db 3.6.0
- 8y agogrexgrex 1.7 updates the reference to org.Hs.eg.db 3.4.2
- 8y agogrexgrex 1.6 drops Google Fonts from vignettes
- 9y agogrexgrex 1.5 adds a pkgdown site and refreshes the reference
Frequently asked questions
What is the difference between cairo and grex?
They serve adjacent needs but don't currently overlap on shipped themes. cairo and grex are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is cairo better than grex?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. cairo and grex are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to cairo?
Top cairo alternatives in Analytics are ranked by recent ship velocity. Browse the "cairo alternatives" section above for the current picks, or visit /alternatives/cairo-r for the full list with editorial commentary on each.
What are the best alternatives to grex?
Top grex alternatives in Analytics are ranked by recent ship velocity. Browse the "grex alternatives" section above for the current picks, or visit /alternatives/grex-r for the full list with editorial commentary on each.