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Comparison · Analytics
pedprobr vs rpymat
A side-by-side editorial comparison of pedprobr and rpymat — release velocity, themes, recent moves, and the top alternatives to consider.
pedprobr vs rpymat: at a glance
What is pedprobr?
pedprobr is the likelihood engine, and it keeps finding ways to compute what it previously could not.
pedprobr computes pedigree likelihoods for the ped suite. Version 1.1.0 updated its loop handling to match pedtools 2.11.0, including founder and repeated loop breakers, and improved the peeling algorithm with single-child shortcuts and lower memory use. Version 1.0.0 was the other expansion: special lumping lets markers with mutation models that are un-lumpable in the Kemeny-Snell sense be lumped anyway in certain cases, with alleleLimit as a fallback for the rest.
What is rpymat?
After three dormant years, rpymat returned to fix the OpenMP crash that breaks R and conda together
rpymat manages an isolated conda-based Python environment for R packages, providing a reproducible bridge without touching the user's system Python. It released steadily through 2022-2023 and then went quiet for nearly three years. 0.1.9 in May 2026 is the first release since, and it addresses a specific and long-standing failure mode.
pedprobr vs rpymat: editorial side-by-side
pedprobr
0.0ANALYTICS
pedprobr is the likelihood engine, and it keeps finding ways to compute what it previously could not.
◆ Current state
pedprobr computes pedigree likelihoods for the ped suite. Version 1.1.0 updated its loop handling to match pedtools 2.11.0, including founder and repeated loop breakers, and improved the peeling algorithm with single-child shortcuts and lower memory use. Version 1.0.0 was the other expansion: special lumping lets markers with mutation models that are un-lumpable in the Kemeny-Snell sense be lumped anyway in certain cases, with alleleLimit as a fallback for the rest.
◆ Where it's heading
Every significant release here removes a class of computation that used to be infeasible, either by making a marker lumpable or by making a loop breakable. The rest is steady peeling-algorithm optimization, which has been reducing memory footprint release after release since 0.9.2. The newly added .diagnostics option suggests the peeling internals are now complex enough that the maintainer needs to inspect them.
◆ Prediction
Since special lumping is documented as covering only some cases so far, expect further lumping situations to be implemented as pedmut adds them.
rpymat
0.0ANALYTICS
After three dormant years, rpymat returned to fix the OpenMP crash that breaks R and conda together
◆ Current state
rpymat manages an isolated conda-based Python environment for R packages, providing a reproducible bridge without touching the user's system Python. It released steadily through 2022-2023 and then went quiet for nearly three years. 0.1.9 in May 2026 is the first release since, and it addresses a specific and long-standing failure mode.
◆ Where it's heading
The work is about surviving the seams between two runtimes. 0.1.9 addresses OpenMP double-initialization — the error users hit when R's OpenMP and conda's disagree — by setting KMP_DUPLICATE_LIB_OK as a compromise, and adds fix_omp_conflict() to symlink over conda's built-in version as the recommended real fix. The caveat is stated plainly: users must re-run it whenever R is updated, and the ABI versions must match. Earlier releases followed the same pattern, with 0.1.2 fixing segfaults from incompatible BLAS between numpy and R.
◆ Prediction
The recurring theme across releases is native library conflicts between the R and conda stacks, so further releases are likely to keep patching that surface as Python versions move. The three-year gap makes cadence unpredictable.
Alternatives to pedprobr and rpymat
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 pedprobr or rpymat.
spsurvey
spsurvey has spent four years consolidating after its 5.0.0 rewrite rather than adding to it
StreamCatTools
StreamCatTools is quietly moving off web services and onto cloud-native GeoParquet
reproducible
reproducible added a windowed read path so remote GeoTiffs never fully download
qcTAF
qcTAF is building an automated checklist for reproducible fisheries assessments, one criterion at a time
ieegio
ieegio's first release lands electrode trajectory burning and a WebGL-free surface plot
See all pedprobr alternatives → · See all rpymat alternatives →
Recent activity from pedprobr and rpymat
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agopedprobrLoop handling updated for pedtools' new loop breakers
- 2mo agorpymatOpenMP conflict workaround and fix_omp_conflict() helper
- 1y agopedprobrCRAN example rounding fix
- 1y agopedprobrSpecial lumping for previously un-lumpable mutation models
- 1y agopedprobrGenotype distributions gain sparse and table output
- 2y agopedprobrPeeling order bug fix
- 2y agopedprobrPartial genotype fix for singletons
- 3y agorpymatFix installation regression from 0.1.5
- 3y agorpymatFile choosers, reticulate conversion ports and reusable conda detection
- 4y agorpymatWindows support and BLAS segfault fix
Frequently asked questions
What is the difference between pedprobr and rpymat?
They serve adjacent needs but don't currently overlap on shipped themes. pedprobr and rpymat 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 pedprobr better than rpymat?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. pedprobr and rpymat 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 pedprobr?
Top pedprobr alternatives in Analytics are ranked by recent ship velocity. Browse the "pedprobr alternatives" section above for the current picks, or visit /alternatives/pedprobr for the full list with editorial commentary on each.
What are the best alternatives to rpymat?
Top rpymat alternatives in Analytics are ranked by recent ship velocity. Browse the "rpymat alternatives" section above for the current picks, or visit /alternatives/rpymat for the full list with editorial commentary on each.