metatools
SDTM supplemental-qualifier merging got sturdier, then the package went quiet for two years.
Comparison · Analytics
chromer vs mlr3spatial
A side-by-side editorial comparison of chromer and mlr3spatial — release velocity, themes, recent moves, and the top alternatives to consider.
chromer vs mlr3spatial: at a glance
What is chromer?
A chromosome-count database client that only ever ships when the upstream API moves.
chromer is a thin R client for the Chromosome Counts Database. Every release in the past three years is maintenance: a new maintainer and licence change in 0.3, test-skipping when the upstream service is down in 0.4, and two separate releases whose entire content is that the database's URL changed again. The current 0.10 points at ccdb.tau.ac.il/services/.
What is mlr3spatial?
Raster prediction in mlr3 finally returns class probabilities, not just hard labels.
mlr3spatial connects mlr3 learners to raster and vector spatial data, handling chunked prediction over large rasters through DataBackendRaster. Development is slow and fix-heavy: most releases in the last two years were compatibility work against mlr3 and paradox rather than new capability. 0.7.0 is the exception.
chromer vs mlr3spatial: editorial side-by-side
chromer
0.0ANALYTICS
A chromosome-count database client that only ever ships when the upstream API moves.
◆ Current state
chromer is a thin R client for the Chromosome Counts Database. Every release in the past three years is maintenance: a new maintainer and licence change in 0.3, test-skipping when the upstream service is down in 0.4, and two separate releases whose entire content is that the database's URL changed again. The current 0.10 points at ccdb.tau.ac.il/services/.
◆ Where it's heading
The package is functionally complete and externally driven — its release cadence is a record of the CCDB's hosting history rather than of any development plan. The defensive work in 0.4, which added an internal check for whether the database is down and skips tests accordingly, shows the maintainer treating upstream instability as the permanent condition rather than an incident.
◆ Prediction
The next release will most likely be triggered by another CCDB endpoint or format change; nothing in the history suggests new functionality is planned.
mlr3spatial
0.0ANALYTICS
Raster prediction in mlr3 finally returns class probabilities, not just hard labels.
◆ Current state
mlr3spatial connects mlr3 learners to raster and vector spatial data, handling chunked prediction over large rasters through DataBackendRaster. Development is slow and fix-heavy: most releases in the last two years were compatibility work against mlr3 and paradox rather than new capability. 0.7.0 is the exception.
◆ Where it's heading
The package tracks the mlr3 core rather than leading it — 0.5.0 and 0.6.1 exist to absorb upstream changes in paradox and mlr3. Against that background, 0.7.0 adding probability predictions to predict_spatial() is the first genuine capability increase in a while, arriving alongside two DataBackendRaster fixes for multi-band sources and similarly-named layers. Cadence is roughly one release per year.
◆ Prediction
Given the pattern, the next release is more likely to be compatibility work against a new mlr3 or terra version than another feature; further raster-backend edge cases around layer naming are the visible loose end.
Alternatives to chromer and mlr3spatial
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 chromer or mlr3spatial.
marquee
marquee is filling in the typographic details — outlines, border types, real font metrics for underlines.
logrx
A clinical-script logger that stopped shipping after its 0.2 line, changelogs made of merged PRs.
lobstr
R's object inspector is losing its view of the internals as CRAN closes off the private C API.
GSODR
A weather-station data client that broke one return type to hand back distances instead of bare IDs.
giscoR
giscoR's 1.0 moved its dataset index into the cache, so new Eurostat releases arrive without a package update.
See all chromer alternatives → · See all mlr3spatial alternatives →
Recent activity from chromer and mlr3spatial
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agomlr3spatialpredict_spatial() gains probability predictions
- 10mo agomlr3spatialCompatibility with mlr3 1.2.0
- 1y agochromerChromosome Counts Database endpoint moved again
- 1y agomlr3spatialError on conflicting X/Y columns in sf objects
- 2y agochromerDatabase URL updated after upstream move
- 2y agomlr3spatialCompatibility with paradox 1.0.0
- 2y agochromerAPI calls switched to https
- 2y agochromerDocumentation tweak for a CRAN check
- 3y agomlr3spatialUse terra::inMemory() instead of the @ptr slot
- 3y agochromerTests skipped when the upstream database is down
- 3y agomlr3spatialspatial_predict() accepts stars, sf and Raster* inputs
- 3y agochromerNew maintainer; licence changes from CC0 to MIT
Frequently asked questions
What is the difference between chromer and mlr3spatial?
They serve adjacent needs but don't currently overlap on shipped themes. chromer and mlr3spatial 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 chromer better than mlr3spatial?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. chromer and mlr3spatial 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 chromer?
Top chromer alternatives in Analytics are ranked by recent ship velocity. Browse the "chromer alternatives" section above for the current picks, or visit /alternatives/chromer for the full list with editorial commentary on each.
What are the best alternatives to mlr3spatial?
Top mlr3spatial alternatives in Analytics are ranked by recent ship velocity. Browse the "mlr3spatial alternatives" section above for the current picks, or visit /alternatives/mlr3spatial for the full list with editorial commentary on each.