metatools
SDTM supplemental-qualifier merging got sturdier, then the package went quiet for two years.
Comparison · Analytics
admiral vs FedData
A side-by-side editorial comparison of admiral and FedData — release velocity, themes, recent moves, and the top alternatives to consider.
admiral vs FedData: at a glance
What is admiral?
admiral spent its last cycle making complex derivations documentable rather than adding more of them.
admiral is the pharmaverse's ADaM dataset derivation toolkit — a large library of derive_* functions for building analysis datasets from SDTM. The 1.2.0 and 1.3.0 releases added new derivation functions and then a substantial documentation overhaul: argument defaults now appear in the help text and complex functions carry titled, described examples. 1.3.1 was a hotfix for links and the search index.
What is FedData?
FedData has spent two major versions migrating US federal geodata off R's retiring spatial stack.
FedData downloads and standardises US federal geospatial datasets — NLCD, NHD, NED, SSURGO, Daymet, GHCN, PAD-US, NASS — into consistent R objects. Two breaking majors define the current package: 3.0.0 moved returns to sf and raster and pulled data from cloud-optimised GeoTIFFs, and 4.0.0 finished the job by dropping sp and raster entirely for terra and sf. Recent releases are dataset refreshes, most recently PAD-US 4.0.
admiral vs FedData: editorial side-by-side
admiral
0.0ANALYTICS
admiral spent its last cycle making complex derivations documentable rather than adding more of them.
◆ Current state
admiral is the pharmaverse's ADaM dataset derivation toolkit — a large library of derive_* functions for building analysis datasets from SDTM. The 1.2.0 and 1.3.0 releases added new derivation functions and then a substantial documentation overhaul: argument defaults now appear in the help text and complex functions carry titled, described examples. 1.3.1 was a hotfix for links and the search index.
◆ Where it's heading
The direction is toward usability of an already-large API rather than growth of it. 1.1.0 rewrote error messaging to be user-facing, 1.2.0 added flexibility to duplicate handling across several functions via check_type, and 1.3.0 invested in the structured-example documentation that the rdx_roclet work in {admiraldev} made possible. The two packages move together.
◆ Prediction
With the documentation infrastructure in place, expect the remaining complex derivation functions to be brought up to the structured-example standard, and new therapeutic-area work to keep landing in the extension packages rather than the core.
FedData
0.0ANALYTICS
FedData has spent two major versions migrating US federal geodata off R's retiring spatial stack.
◆ Current state
FedData downloads and standardises US federal geospatial datasets — NLCD, NHD, NED, SSURGO, Daymet, GHCN, PAD-US, NASS — into consistent R objects. Two breaking majors define the current package: 3.0.0 moved returns to sf and raster and pulled data from cloud-optimised GeoTIFFs, and 4.0.0 finished the job by dropping sp and raster entirely for terra and sf. Recent releases are dataset refreshes, most recently PAD-US 4.0.
◆ Where it's heading
The package tracks two moving targets at once: the R spatial stack, which it has now fully migrated onto terra and sf, and the federal agencies whose URLs, file naming and hosting keep shifting. With the dependency migration finished, releases have shrunk to single-dataset updates such as annual NLCD and PAD-US 4.0, which suggests the structural work is done and the ongoing cost is data-source maintenance.
◆ Prediction
Expect continued small releases pinned to new vintages of the underlying federal datasets, plus fixes when an agency moves or reformats a source; no further dependency-level upheaval is visible in these entries.
Alternatives to admiral and FedData
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 admiral or FedData.
marquee
marquee is filling in the typographic details — outlines, border types, real font metrics for underlines.
logrx
A clinical-script logger that stopped shipping after its 0.2 line, changelogs made of merged PRs.
lobstr
R's object inspector is losing its view of the internals as CRAN closes off the private C API.
GSODR
A weather-station data client that broke one return type to hand back distances instead of bare IDs.
giscoR
giscoR's 1.0 moved its dataset index into the cache, so new Eurostat releases arrive without a package update.
See all admiral alternatives → · See all FedData alternatives →
Recent activity from admiral and FedData
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1y agoadmiralSearch index and footer link fixes
- 1y agoadmiralDocumentation overhaul: defaults shown, complex functions get structured examples
- 1y agoadmiralNew derivations for categorical pairs, criterion flags and range transforms
- 1y agoFedDataget_padus() updated to PAD-US 4.0
- 1y agoFedDataAnnual NLCD access added; get_nass() retired
- 2y agoadmiralUser-facing error messages and merge helpers exposed
- 2y agoFedDatasp and raster dropped; everything returns terra or sf ⚡
- 3y agoFedDataGHCN moves to https; NHD handles empty and odd geometries
- 3y agoFedDataAll raster writing moves to terra
- 3y agoFedDataVersion 3 rebuilds on sf and cloud-optimised GeoTIFFs ⚡
Frequently asked questions
What is the difference between admiral and FedData?
They serve adjacent needs but don't currently overlap on shipped themes. admiral and FedData 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 admiral better than FedData?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. admiral and FedData 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 admiral?
Top admiral alternatives in Analytics are ranked by recent ship velocity. Browse the "admiral alternatives" section above for the current picks, or visit /alternatives/admiral for the full list with editorial commentary on each.
What are the best alternatives to FedData?
Top FedData alternatives in Analytics are ranked by recent ship velocity. Browse the "FedData alternatives" section above for the current picks, or visit /alternatives/feddata for the full list with editorial commentary on each.