tern.rbmi
Reference-based multiple imputation tables, shipping only what CRAN checks demand.
Comparison · Analytics
grex vs lpjmlkit
A side-by-side editorial comparison of grex and lpjmlkit — release velocity, themes, recent moves, and the top alternatives to consider.
grex vs lpjmlkit: at a glance
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.
What is lpjmlkit?
The LPJmL toolkit finally reads NetCDF, closing a gap against the format its field uses.
lpjmlkit is the R toolkit for running the LPJmL dynamic global vegetation model and reading its output. The 1.8.0 release adds direct NetCDF reading, either straight or via .nc.json metafiles, alongside the package's own binary formats. Before that, 1.7.3 sped up read_io(), reworked the LPJmLGridData implementation and added reservoir input support. Releases are infrequent, roughly one every 12 to 18 months.
grex vs lpjmlkit: editorial side-by-side
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 That gap matters more here than it would elsewhere — a stale mapping table silently returns outdated symbols rather than failing, so the package's core asset ages invisibly.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.
lpjmlkit
0.0ANALYTICS
The LPJmL toolkit finally reads NetCDF, closing a gap against the format its field uses.
◆ Current state
lpjmlkit is the R toolkit for running the LPJmL dynamic global vegetation model and reading its output. The 1.8.0 release adds direct NetCDF reading, either straight or via .nc.json metafiles, alongside the package's own binary formats. Before that, 1.7.3 sped up read_io(), reworked the LPJmLGridData implementation and added reservoir input support. Releases are infrequent, roughly one every 12 to 18 months.
◆ Where it's heading
The work concentrates on the I/O layer rather than the modeling interface, and it is moving toward the formats the wider earth-system community already exchanges. The gap between 1.7.3 and 1.8.0 is over a year, so this is a research-group package released when the science requires it, not on a schedule. The changelog itself is thin — several entries are merge-commit text or CRAN resubmissions.
◆ Prediction
Further I/O breadth is the likeliest direction now that NetCDF is supported, though the entries give no schedule; the release cadence has not been regular enough to predict timing.
Alternatives to grex and lpjmlkit
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 grex or lpjmlkit.
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.
See all grex alternatives → · See all lpjmlkit alternatives →
Recent activity from grex and lpjmlkit
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5mo agolpjmlkitNetCDF and .nc.json metafile reading support
- 1y agogrexgrex 1.9.1: pkgdown on Actions, smaller vignette
- 1y agolpjmlkitread_io() speedup and reservoir input support
- 3y agolpjmlkitCRAN resubmission for Mac M1 build failures
- 3y agolpjmlkitCRAN resubmission for Mac M1 build failures
- 3y agolpjmlkit1.0.0 restructure introduces argument deprecations
- 3y agolpjmlkitData type naming and quote character fixes
- 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 grex and lpjmlkit?
They serve adjacent needs but don't currently overlap on shipped themes. grex and lpjmlkit 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 grex better than lpjmlkit?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. grex and lpjmlkit 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 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.
What are the best alternatives to lpjmlkit?
Top lpjmlkit alternatives in Analytics are ranked by recent ship velocity. Browse the "lpjmlkit alternatives" section above for the current picks, or visit /alternatives/lpjmlkit-r for the full list with editorial commentary on each.