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leaflet vs themis

A side-by-side editorial comparison of leaflet and themis — release velocity, themes, recent moves, and the top alternatives to consider.

leaflet vs themis: at a glance

Featureleafletthemis
SectorAnalyticsAnalytics
Velocity score0.02.5
Sparks · 30d00
Top themesmapping, geospatial, sf-migration, licensingr, tidymodels, class-imbalance, resampling
Last editorial update47m ago2h ago
WebsiteVisit →Visit →

What is leaflet?

leaflet relicensed to MIT and finished migrating off R's retired spatial stack

leaflet is the R binding for the Leaflet mapping library. Its recent releases are dominated by one long migration: away from sp, rgdal, rgeos and raster, and toward sf and terra. Version 2.2.3 completed the user-facing half of that - sp is no longer installed by default, and bundled datasets ship as sf objects - while also relicensing the package from GPL-2 to MIT.

Read the full leaflet trajectory →

What is themis?

themis is back to adding real resampling algorithms after a documentation-heavy stretch.

themis supplies recipes steps for handling class imbalance in tidymodels. The 1.0.x line was consumed by documentation accuracy, message translation and internal consistency work. Version 1.1.0 returns to substance with two new under-sampling methods.

Read the full themis trajectory →

leaflet vs themis: editorial side-by-side

L
leaflet
ANALYTICS
0.0

leaflet relicensed to MIT and finished migrating off R's retired spatial stack

◆ Current state

leaflet is the R binding for the Leaflet mapping library. Its recent releases are dominated by one long migration: away from sp, rgdal, rgeos and raster, and toward sf and terra. Version 2.2.3 completed the user-facing half of that - sp is no longer installed by default, and bundled datasets ship as sf objects - while also relicensing the package from GPL-2 to MIT.

◆ Where it's heading

This is a package being brought into line with an ecosystem that changed underneath it. The retirement of rgdal and rgeos forced the terra and sf work; the license change and dependency reductions are the maintainers taking the opportunity to clean up while they are already in there. Feature work, such as the full viridisLite palette set, arrives as a side effect of the tidying.

◆ Prediction

With the sp path now opt-in and the retired geospatial dependencies gone, expect the remaining work to be small: palette and provider-tile handling, and keeping the bundled JavaScript current.

T
themis
ANALYTICS
2.5

themis is back to adding real resampling algorithms after a documentation-heavy stretch.

◆ Current state

themis supplies recipes steps for handling class imbalance in tidymodels. The 1.0.x line was consumed by documentation accuracy, message translation and internal consistency work. Version 1.1.0 returns to substance with two new under-sampling methods.

◆ Where it's heading

The package grows by adding algorithms rather than restructuring itself. tomek() was rewritten to handle multiple classes and drop the unbalanced dependency, case weights arrived at 1.0.0, and cluster-centroid and condensed-nearest-neighbour under-sampling arrive now — each shipped as both a recipes step and a direct-implementation function.

◆ Prediction

Expect further under- and over-sampling methods in the same paired form, as the package fills out coverage of the standard class-imbalance literature.

Alternatives to leaflet and themis

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 leaflet or themis.

See all leaflet alternatives → · See all themis alternatives →

Recent activity from leaflet and themis

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 10d agothemisthemis 1.1.0 adds cluster-centroid and CNN under-sampling
  2. 11mo agoleafletMIT relicensing and sp dropped from default installs
  3. 1y agothemisthemis 1.0.3 corrects resampling direction in documentation
  4. 2y agoleafletterra CRS handling fixed; raster images accept layer options
  5. 2y agoleafletProvider tile dependency is cacheable by knitr again
  6. 2y agoleafletAdds terra support and removes rgdal and rgeos
  7. 2y agothemisthemis 1.0.2 makes internal consistency and speed changes
  8. 3y agoleafletUpdates proj4.js and fixes examples to stay on CRAN
  9. 3y agothemisthemis 1.0.1 fixes upsampling errors when none is needed
  10. 4y agothemisthemis 1.0.0 adds case weights to up- and down-sampling
  11. 4y agothemisthemis 0.2.2 rewrites tomek() for multiclass, drops a dependency

Frequently asked questions

What is the difference between leaflet and themis?

They serve adjacent needs but don't currently overlap on shipped themes. themis is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is leaflet better than themis?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. themis is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to leaflet?

Top leaflet alternatives in Analytics are ranked by recent ship velocity. Browse the "leaflet alternatives" section above for the current picks, or visit /alternatives/leaflet-r for the full list with editorial commentary on each.

What are the best alternatives to themis?

Top themis alternatives in Analytics are ranked by recent ship velocity. Browse the "themis alternatives" section above for the current picks, or visit /alternatives/themis for the full list with editorial commentary on each.