EvoPhylo
EvoPhylo added BEAST2 alongside MrBayes, then went quiet for two years.
Comparison · Analytics
biocro vs geomander
A side-by-side editorial comparison of biocro and geomander — release velocity, themes, recent moves, and the top alternatives to consider.
biocro vs geomander: at a glance
What is biocro?
BioCro swapped an unstable iteration for real root finders, changing what its crop models compute.
BioCro is a C++ crop growth simulator with an R interface, built from swappable modules for photosynthesis, respiration and development. Version 3.3.0 added multidimensional and one-dimensional root finders to the C++ source and put them to work immediately, replacing the fixed-point iteration used for intercellular CO2 with a Dekker root finder on the grounds that fixed-point iteration is known to be unstable there. Getting to that release also required moving from C++11 to C++17 and updating the bundled boost from 1.71 to 1.89.
What is geomander?
A redistricting toolkit that grows mostly by wiring in new public data sources
geomander provides geographic tools for redistricting analysis in R — matching and aggregating across block, VTD and district geometries, spatial diagnostics, and download helpers for the datasets the field relies on. Recent work splits between data access, with fetchers added for Jeffrey B. Lewis's historical congressional districts and RPV Near Me, and performance, with 2.5.0 delivering large speed gains in geo_match().
biocro vs geomander: editorial side-by-side
biocro
0.0ANALYTICS
BioCro swapped an unstable iteration for real root finders, changing what its crop models compute.
◆ Current state
BioCro is a C++ crop growth simulator with an R interface, built from swappable modules for photosynthesis, respiration and development. Version 3.3.0 added multidimensional and one-dimensional root finders to the C++ source and put them to work immediately, replacing the fixed-point iteration used for intercellular CO2 with a Dekker root finder on the grounds that fixed-point iteration is known to be unstable there. Getting to that release also required moving from C++11 to C++17 and updating the bundled boost from 1.71 to 1.89.
◆ Where it's heading
Two threads run together: the biology is being broken into finer interchangeable modules — separate maintenance respiration, alternative linear and logistic SLA methods, a direct development-index module — while the numerics underneath are being made solvable in general. The root finders are explicitly staged to move into the shared biocro/framework repository, so this is groundwork for other models rather than for this package alone.
◆ Prediction
More module-level alternatives that depend on simultaneous-equation solutions are the natural follow-on, and the root finders should migrate out to biocro/framework as the notes state.
geomander
0.0ANALYTICS
A redistricting toolkit that grows mostly by wiring in new public data sources
◆ Current state
geomander provides geographic tools for redistricting analysis in R — matching and aggregating across block, VTD and district geometries, spatial diagnostics, and download helpers for the datasets the field relies on. Recent work splits between data access, with fetchers added for Jeffrey B. Lewis's historical congressional districts and RPV Near Me, and performance, with 2.5.0 delivering large speed gains in geo_match().
◆ Where it's heading
The package is consolidating as infrastructure rather than expanding its analytical surface. Each release either adds a source of redistricting data that users would otherwise download by hand, or makes the core geographic matching operations faster and more correct — the normalized global Moran's I correction and the block-level geometry mismatch fix both fall in the second category. geo_match() being the target of the most recent release confirms where the hot path is.
◆ Prediction
With geo_match() now optimised, the remaining friction is in the download helpers, several of which have needed repair after upstream changes; expect the next release to consolidate or harden those fetchers rather than add analysis functions.
Alternatives to biocro and geomander
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 biocro or geomander.
treespace
treespace ships once every year or two, and only when CRAN or a user forces it.
Rpath
Rpath 1.1.0 learns to read Ecopath's own files, easing migration off the desktop tool.
TAF
TAF keeps turning ICES stock assessments into reproducible, dependency-pinned projects.
parallelDist
parallelDist is in pure preservation mode — one build fix every few years.
cairo
Cairo finally catches R's graphics engine, all the way to GE API 16.
See all biocro alternatives → · See all geomander alternatives →
Recent activity from biocro and geomander
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 6mo agobiocroCompiler warning blocking Linux builds fixed
- 8mo agobiocroC++ root finders added; Ci calculation moved off fixed-point iteration ⚡
- 8mo agogeomanderLarge speed gains in geo_match()
- 1y agobiocroMaintenance respiration module; SLA split into swappable methods
- 2y agogeomanderFetchers for Lewis historical districts and RPV Near Me
- 2y agobiocroFirst CRAN-accepted release after a 20 MB to 5 MB cut
- 2y agobiocroDESCRIPTION date refreshed for CRAN submission
- 2y agobiocroCI workflow debugging tag, not a release
- 3y agogeomanderMaximum inscribed circle centres and BAF-to-VTD approximation
- 5y agogeomanderRepository tag marking CRAN release 1.0.8
Frequently asked questions
What is the difference between biocro and geomander?
They serve adjacent needs but don't currently overlap on shipped themes. biocro and geomander 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 biocro better than geomander?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. biocro and geomander 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 biocro?
Top biocro alternatives in Analytics are ranked by recent ship velocity. Browse the "biocro alternatives" section above for the current picks, or visit /alternatives/biocro-r for the full list with editorial commentary on each.
What are the best alternatives to geomander?
Top geomander alternatives in Analytics are ranked by recent ship velocity. Browse the "geomander alternatives" section above for the current picks, or visit /alternatives/geomander-r for the full list with editorial commentary on each.