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SDTM supplemental-qualifier merging got sturdier, then the package went quiet for two years.
Comparison · Analytics
admiraldiscovery vs FedData
A side-by-side editorial comparison of admiraldiscovery and FedData — release velocity, themes, recent moves, and the top alternatives to consider.
admiraldiscovery vs FedData: at a glance
What is admiraldiscovery?
A lookup index for the admiral family that grows one therapeutic area at a time.
admiraldiscovery is a search aid rather than a code package: it maps ADaM variables to the {admiral} functions that derive them, alongside a listing of conference presentations. Its releases are catalogue updates, not functional changes. The most recent adds variables from {admiralneuro} plus AAGE and NFRLT.
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.
admiraldiscovery vs FedData: editorial side-by-side
admiraldiscovery
0.0ANALYTICS
A lookup index for the admiral family that grows one therapeutic area at a time.
◆ Current state
admiraldiscovery is a search aid rather than a code package: it maps ADaM variables to the {admiral} functions that derive them, alongside a listing of conference presentations. Its releases are catalogue updates, not functional changes. The most recent adds variables from {admiralneuro} plus AAGE and NFRLT.
◆ Where it's heading
Each release absorbs the variable listing of whichever therapeutic-area extension shipped most recently — paediatrics in 0.3.0, metabolic in 0.4.0, neuro in 0.6.0. The package is effectively an index trailing the family's expansion, so its cadence is a proxy for how fast new admiral extensions appear.
◆ Prediction
The next release will most likely fold in variables from whichever admiral therapeutic-area package lands next, together with a refreshed presentation list.
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 admiraldiscovery 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 admiraldiscovery or FedData.
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logrx
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lobstr
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GSODR
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giscoR
giscoR's 1.0 moved its dataset index into the cache, so new Eurostat releases arrive without a package update.
See all admiraldiscovery alternatives → · See all FedData alternatives →
Recent activity from admiraldiscovery and FedData
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agoadmiraldiscoveryNeuro variables, AAGE and NFRLT added to the variable index
- 7mo agoadmiraldiscoveryPresentation and paper listings refreshed
- 1y agoFedDataget_padus() updated to PAD-US 4.0
- 1y agoadmiraldiscoveryMetabolic package variables added to the listing
- 1y agoFedDataAnnual NLCD access added; get_nass() retired
- 1y agoadmiraldiscoveryPaediatrics package variables added to the listing
- 2y agoadmiraldiscoveryVariable listing corrections
- 2y agoadmiraldiscoveryIndex tracks latest family releases; presenters named
- 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 admiraldiscovery and FedData?
They serve adjacent needs but don't currently overlap on shipped themes. admiraldiscovery 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 admiraldiscovery better than FedData?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. admiraldiscovery 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 admiraldiscovery?
Top admiraldiscovery alternatives in Analytics are ranked by recent ship velocity. Browse the "admiraldiscovery alternatives" section above for the current picks, or visit /alternatives/admiraldiscovery 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.