stringi has spent two years on build hardening since its Unicode 15.1 reset.
TwoSampleMR alternatives
The best TwoSampleMR alternatives in analytics tools, ranked by Sparkpulse's velocity_score.
Updated Aug 15, 2026
Looking for the best alternatives to TwoSampleMR? Sparkpulse tracks and ranks 12 alternatives in analytics tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, TwoSampleMR shipped 0 meaningful updates in the last 30 days and carries a velocity score of 0.0 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About TwoSampleMR
The flagship Mendelian randomization package is auditing its own estimators, one bootstrap at a time.
TwoSampleMR is the MRC-IEU package for two-sample Mendelian randomization against OpenGWAS. Its 2026 releases are a sustained correctness review rather than feature work: 0.7.9 fixed bootstrap standard errors in mr_mode() and mr_rucker_bootstrap() that had been inflated since v0.6.30, and repaired two Rucker functions that were returning malformed objects. Point estimates were not affected by the bootstrap bug.
Velocity 0.0 · Last update 1h ago
Top 12 alternatives to TwoSampleMR
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
A phylogenetics parser on life support, shipping only what CRAN's compilers demand.
climaemet added weather alerts and wildfire risk, then spent two years managing rate limits.
spanishoddata spent a year finding out its 2020-2021 data was quietly incomplete.
tidyterra finished wiring terra objects into the tidyverse, one verb family at a time.
mapSpain's 1.0.0 broke every user cache to get the package onto modern foundations.
A Berlin groundwater scraper grew a full IoT publishing pipeline in two days.
cheapr turned multi-threaded, and its next stop is a C++20 public API.
RadialMR's 2026 release corrects degrees of freedom that had been wrong since documentation.
mrbayes spent 2026 auditing its own Bayesian MR estimators for coding errors.
lineup2 ships once every few years, and 2026's release is a logo and a core-count tweak.
A 2017 chemometrics method frozen in place, visited only when CRAN changes its documentation rules.
TwoSampleMR vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| TwoSampleMR (baseline) | 0.0 | 0 | mendelian-randomizationgenetic-epidemiologycorrectness-fixes | — |
| stringi | 2.5 | 0 | unicodeicubuild-portability | ICU 74.1 bundle lands; Solaris support dropped |
| rncl | 2.5 | 0 | phylogeneticsfile-parsingcran-maintenance | — |
| climaemet | 0.0 | 0 | weather-dataaemetspain | Weather alerts and wildfire risk rasters added |
| spanishoddata | 0.0 | 0 | mobility-dataorigin-destinationduckdb | — |
| tidyterra | 0.0 | 0 | geospatialterratidyverse | 1.0.0 requires ggplot2 4.0 and adds broom-style generics |
| mapSpain | 0.0 | 0 | spainadministrative-boundariesgeospatial | 1.0.0 rebuilds on httr2 and invalidates every cache |
| wasserportal | 0.0 | 0 | groundwater-monitoringweb-scrapingthingsboard | ThingsBoard integration turns the scraper into a pipeline |
| cheapr | 0.0 | 0 | performanceparallelismsimd | Parallelised math, thread control, and a C API rewrite |
| RadialMR | 0.0 | 0 | mendelian-randomizationradial-plotscorrectness-audit | — |
| mrbayes | 0.0 | 0 | mendelian-randomizationbayesian-inferencestan | — |
| lineup2 | 0.0 | 0 | sample-mixupsdistance-metricsr-package | — |
| OHPL | 0.0 | 0 | chemometricsvariable-selectionspectroscopy | — |
The 12 best TwoSampleMR alternatives, in depth
1. stringi · velocity 2.5
Stringi has spent two years on build hardening since its Unicode 15.1 reset.
Its velocity score of 2.5/10 reflects longer-term release cadence; its most recent meaningful update was “ICU 74.1 bundle lands; Solaris support dropped”.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, stringi focuses on unicode, icu and build portability.
stringi and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full stringi trajectory → · Compare TwoSampleMR vs stringi →
2. rncl · velocity 2.5
A phylogenetics parser on life support, shipping only what CRAN's compilers demand.
Its velocity score of 2.5/10 reflects longer-term release cadence.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, rncl focuses on phylogenetics, file parsing and cran maintenance.
rncl and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
3. climaemet · velocity 0.0
Climaemet added weather alerts and wildfire risk, then spent two years managing rate limits.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “Weather alerts and wildfire risk rasters added”.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, climaemet focuses on weather data, aemet and spain.
climaemet and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full climaemet trajectory → · Compare TwoSampleMR vs climaemet →
4. spanishoddata · velocity 0.0
Spanishoddata spent a year finding out its 2020-2021 data was quietly incomplete.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, spanishoddata focuses on mobility data, origin destination and duckdb.
spanishoddata and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full spanishoddata trajectory → · Compare TwoSampleMR vs spanishoddata →
5. tidyterra · velocity 0.0
Tidyterra finished wiring terra objects into the tidyverse, one verb family at a time.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “1.0.0 requires ggplot2 4.0 and adds broom-style generics”.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, tidyterra focuses on geospatial, terra and tidyverse.
tidyterra and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full tidyterra trajectory → · Compare TwoSampleMR vs tidyterra →
6. mapSpain · velocity 0.0
MapSpain's 1.0.0 broke every user cache to get the package onto modern foundations.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “1.0.0 rebuilds on httr2 and invalidates every cache”.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, mapSpain focuses on spain, administrative boundaries and geospatial.
mapSpain and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full mapSpain trajectory → · Compare TwoSampleMR vs mapSpain →
7. wasserportal · velocity 0.0
A Berlin groundwater scraper grew a full IoT publishing pipeline in two days.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “ThingsBoard integration turns the scraper into a pipeline”.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, wasserportal focuses on groundwater monitoring, web scraping and thingsboard.
wasserportal and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full wasserportal trajectory → · Compare TwoSampleMR vs wasserportal →
8. cheapr · velocity 0.0
Cheapr turned multi-threaded, and its next stop is a C++20 public API.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “Parallelised math, thread control, and a C API rewrite”.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, cheapr focuses on performance, parallelism and simd.
cheapr and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. RadialMR · velocity 0.0
RadialMR's 2026 release corrects degrees of freedom that had been wrong since documentation.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, RadialMR focuses on mendelian randomization, radial plots and correctness audit.
RadialMR and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full RadialMR trajectory → · Compare TwoSampleMR vs RadialMR →
10. mrbayes · velocity 0.0
Mrbayes spent 2026 auditing its own Bayesian MR estimators for coding errors.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, mrbayes focuses on mendelian randomization, bayesian inference and stan.
mrbayes and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full mrbayes trajectory → · Compare TwoSampleMR vs mrbayes →
11. lineup2 · velocity 0.0
Lineup2 ships once every few years, and 2026's release is a logo and a core-count tweak.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, lineup2 focuses on sample mixups, distance metrics and r package.
lineup2 and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full lineup2 trajectory → · Compare TwoSampleMR vs lineup2 →
12. OHPL · velocity 0.0
A 2017 chemometrics method frozen in place, visited only when CRAN changes its documentation rules.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where TwoSampleMR leans on mendelian randomization, genetic epidemiology and correctness fixes, OHPL focuses on chemometrics, variable selection and spectroscopy.
OHPL and TwoSampleMR have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Frequently asked questions
What are the best alternatives to TwoSampleMR?
The top TwoSampleMR alternatives we currently track in analytics tools are stringi, rncl, climaemet, spanishoddata, tidyterra, ranked by recent ship velocity.
How is this list of TwoSampleMR alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare TwoSampleMR directly with one of these alternatives?
Yes — every card has a "Compare with TwoSampleMR" link to a side-by-side /compare page.