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Comparison · Analytics
pedbuildr vs StreamCatTools
A side-by-side editorial comparison of pedbuildr and StreamCatTools — release velocity, themes, recent moves, and the top alternatives to consider.
pedbuildr vs StreamCatTools: at a glance
What is pedbuildr?
pedbuildr reconstructs pedigrees from DNA, and it just got much faster at the search.
pedbuildr infers pedigree structure from marker data by scoring candidate pedigrees against likelihoods. Version 0.4.0 moved reconstruct() to mirai for parallel likelihood computation, deprecated the old numCores argument, and picked up the improved loop breaking from pedtools and pedprobr, which lets many complex looped pedigrees succeed where they previously failed. buildPeds() also got significantly faster in its default configuration where mating between lineally related individuals is disallowed.
What is StreamCatTools?
StreamCatTools is quietly moving off web services and onto cloud-native GeoParquet
StreamCatTools is the R client for the US EPA's StreamCat and LakeCat watershed metrics datasets. Through 2025 it worked almost entirely against the StreamCat web API, and much of its release history is about making those HTTP calls survive real conditions — POST bodies for long COMID lists, tryCatch around service outages, tests that skip when the service is down. 0.11.0 in May 2026 introduces a different data path.
pedbuildr vs StreamCatTools: editorial side-by-side
pedbuildr
0.0ANALYTICS
pedbuildr reconstructs pedigrees from DNA, and it just got much faster at the search.
◆ Current state
pedbuildr infers pedigree structure from marker data by scoring candidate pedigrees against likelihoods. Version 0.4.0 moved reconstruct() to mirai for parallel likelihood computation, deprecated the old numCores argument, and picked up the improved loop breaking from pedtools and pedprobr, which lets many complex looped pedigrees succeed where they previously failed. buildPeds() also got significantly faster in its default configuration where mating between lineally related individuals is disallowed.
◆ Where it's heading
The package is bounded by two costs: how many candidate pedigrees it enumerates and how expensive each likelihood is. The recent release attacks both, parallelizing the likelihoods and speeding up enumeration in the common case. The earlier 0.3.0 release worked on the other end, adding inbreeding limits and a proper result class so the output of a large search is manageable. Releases are infrequent, roughly three years apart in this window.
◆ Prediction
Expect the candidate generation side to receive the same attention the likelihood side just did, since search space size is the remaining bound on what pedbuildr can reconstruct.
StreamCatTools
0.0ANALYTICS
StreamCatTools is quietly moving off web services and onto cloud-native GeoParquet
◆ Current state
StreamCatTools is the R client for the US EPA's StreamCat and LakeCat watershed metrics datasets. Through 2025 it worked almost entirely against the StreamCat web API, and much of its release history is about making those HTTP calls survive real conditions — POST bodies for long COMID lists, tryCatch around service outages, tests that skip when the service is down. 0.11.0 in May 2026 introduces a different data path.
◆ Where it's heading
The newest release adds lc_get_watershed(), which returns a lake watershed as an sf feature by reading an S3-hosted, HUC2-partitioned GeoParquet dataset with DuckDB, optional HUC2 filtering, retries and multi-threading. That is a materially different access model from the web service the rest of the package uses. Alongside it, 0.10.0 added National Nutrient Inventory access and nitrogen/phosphorus budget plotting, extending the package past retrieval into presentation.
◆ Prediction
If the GeoParquet path proves faster and more reliable than the web service, migrating more retrieval functions onto it is the obvious next move. The entries do not say whether EPA intends to publish the full metric catalogue in that format.
Alternatives to pedbuildr and StreamCatTools
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 pedbuildr or StreamCatTools.
spsurvey
spsurvey has spent four years consolidating after its 5.0.0 rewrite rather than adding to it
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
rpymat
After three dormant years, rpymat returned to fix the OpenMP crash that breaks R and conda together
ieegio
ieegio's first release lands electrode trajectory burning and a WebGL-free surface plot
See all pedbuildr alternatives → · See all StreamCatTools alternatives →
Recent activity from pedbuildr and StreamCatTools
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agopedbuildrmirai parallelism and faster pedigree enumeration
- 3mo agoStreamCatToolsLake watersheds read from S3-hosted GeoParquet via DuckDB
- 6mo agoStreamCatToolsNational Nutrient Inventory access and budget plotting
- 9mo agoStreamCatToolsSkip tests when web service is down; vignettes converted to articles
- 10mo agoStreamCatToolsGraceful failure when web services are unavailable
- 10mo agoStreamCatToolsMetric name search and vector arguments for data retrieval
- 11mo agoStreamCatToolsData requests moved to POST body for long COMID lists
- 2y agopedbuildrpedCollection class and an inbreeding ceiling
Frequently asked questions
What is the difference between pedbuildr and StreamCatTools?
They serve adjacent needs but don't currently overlap on shipped themes. pedbuildr and StreamCatTools 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 pedbuildr better than StreamCatTools?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. pedbuildr and StreamCatTools 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 pedbuildr?
Top pedbuildr alternatives in Analytics are ranked by recent ship velocity. Browse the "pedbuildr alternatives" section above for the current picks, or visit /alternatives/pedbuildr for the full list with editorial commentary on each.
What are the best alternatives to StreamCatTools?
Top StreamCatTools alternatives in Analytics are ranked by recent ship velocity. Browse the "StreamCatTools alternatives" section above for the current picks, or visit /alternatives/streamcattools for the full list with editorial commentary on each.