nflreadr
The nflverse data loader, whose releases are dictated by the NFL calendar and CRAN's archive policy
Comparison · Analytics
qtl2convert vs vahtian
A side-by-side editorial comparison of qtl2convert and vahtian — release velocity, themes, recent moves, and the top alternatives to consider.
qtl2convert vs vahtian: at a glance
What is qtl2convert?
A conversion utility in pure maintenance mode, tracking R-devel breakage release by release
qtl2convert is the format-shim of the R/qtl2 ecosystem: it moves genotype probabilities and genetic maps between DOQTL, R/qtl and R/qtl2 representations. The last three releases contain no new conversion functions at all — 0.32 fixed a C string comparison flagged by CRAN, 0.34 restored attribute-clearing that R-devel 4.7 changed underneath the package, and 0.36 adjusted parallel core defaults plus a test tweak. The functional surface has been stable since 0.26 added cross2_ril_to_genril().
What is vahtian?
A provenance-first corpus tool hands its verification core to agents over MCP
vahtian freezes a set of research records into a content-hashed, date-locked corpus, verifies it is untampered, and keeps a hash-chained audit ledger. It ships in Python and R with byte-identical content hashes enforced by a golden-hash test in both suites. In five weeks it went from first release to exposing its five core operations through a local stdio MCP server and registering in the MCP Registry.
qtl2convert vs vahtian: editorial side-by-side
qtl2convert
0.0ANALYTICS
A conversion utility in pure maintenance mode, tracking R-devel breakage release by release
◆ Current state
qtl2convert is the format-shim of the R/qtl2 ecosystem: it moves genotype probabilities and genetic maps between DOQTL, R/qtl and R/qtl2 representations. The last three releases contain no new conversion functions at all — 0.32 fixed a C string comparison flagged by CRAN, 0.34 restored attribute-clearing that R-devel 4.7 changed underneath the package, and 0.36 adjusted parallel core defaults plus a test tweak. The functional surface has been stable since 0.26 added cross2_ril_to_genril().
◆ Where it's heading
This is a package whose release cadence is driven by its dependencies, not its roadmap. Two of the last three releases exist purely because upstream R or CRAN's check suite moved; the maintainer responds within weeks and ships. The cores=0 change in 0.36 is the only user-visible behavior shift in over a year, and it landed simultaneously in sibling package qtl2fst — this is a maintainer-wide convention change, not a qtl2convert decision.
◆ Prediction
Expect the next release to be triggered by another R-devel or CRAN check change rather than a feature request, following the same pattern as 0.32 and 0.34.
vahtian
3.8ANALYTICS
A provenance-first corpus tool hands its verification core to agents over MCP
◆ Current state
vahtian freezes a set of research records into a content-hashed, date-locked corpus, verifies it is untampered, and keeps a hash-chained audit ledger. It ships in Python and R with byte-identical content hashes enforced by a golden-hash test in both suites. In five weeks it went from first release to exposing its five core operations through a local stdio MCP server and registering in the MCP Registry.
◆ Where it's heading
The direction is explicit in the project's own framing — human-first, AI-second, auditable — and the MCP server is what makes that framing operational rather than rhetorical. Rather than adding judgement, the tool is being positioned as the thing an agent calls to prove a corpus has not moved. The CiteVahti claim-source comparator, mirrored across both languages under a parity gate, extends the same idea to per-claim checking. Everything stays on the user's machine: no accounts, no telemetry.
◆ Prediction
The comparator's per-field epistemic states are the newest and least settled piece; expect the next release to extend those states or to widen the R package's distribution, which is still described as coming.
Alternatives to qtl2convert and vahtian
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 qtl2convert or vahtian.
susier
Fine-mapping workhorse susieR spends its releases hunting null-effect trimming bugs
UCell
A rank-based gene signature scorer that has grown by adapting to whatever object format single-cell R uses next
detectseparation
A diagnostic package that generalized past its own name, then learned to say which kind of separation it found
brglm2
A bias-reduction package reaches 1.0 by adding an estimator built for high-dimensional logistic regression
bayestools
The JAGS toolkit under RoBMA, shipping the standardization machinery its downstream rewrite needed
See all qtl2convert alternatives → · See all vahtian alternatives →
Recent activity from qtl2convert and vahtian
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 18d agovahtianvahtian 0.2.0 ⚡
- 1mo agoqtl2convertcores=0 now leaves one core free instead of taking all
- 1mo agovahtianvahtian v0.1.1 — citation metadata release
- 1mo agovahtianvahtian v.0.1.0 ⚡
- 2mo agoqtl2convertAttribute-clearing fix for R-devel 4.7
- 3mo agoqtl2convertC string comparison fix in encode_geno()
- 2y agoqtl2convertBug fix in probs_doqtl_to_qtl2()
- 4y agoqtl2convertMaintenance release for a NEWS.md typo
- 4y agoqtl2convertAdds cross2_ril_to_genril() for RIL cross conversion
Frequently asked questions
What is the difference between qtl2convert and vahtian?
They serve adjacent needs but don't currently overlap on shipped themes. vahtian is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 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 qtl2convert better than vahtian?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. vahtian is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 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 qtl2convert?
Top qtl2convert alternatives in Analytics are ranked by recent ship velocity. Browse the "qtl2convert alternatives" section above for the current picks, or visit /alternatives/qtl2convert for the full list with editorial commentary on each.
What are the best alternatives to vahtian?
Top vahtian alternatives in Analytics are ranked by recent ship velocity. Browse the "vahtian alternatives" section above for the current picks, or visit /alternatives/vahtian for the full list with editorial commentary on each.