seasonal adjustment flag

The adjustment flag that duplicates each published series into seasonally adjusted and not-seasonally-adjusted versions - the multiplication behind the M3 bulk file's ~600,000 rows across 420 months x 174+ series, mirrored in the trade hub's SA/NSA options.

In this catalog it appears concretely: - Census M3 coverage — "both seasonally adjusted and not seasonally adjusted values". - International Trade Data Hub (granularity) — "nominal and chained-2017-dollar, SA and NSA". - seasonally_adj field in U.S. Census Monthly Retail Trade Survey - Motor Vehicle and Parts Dealers. - s_adj dimension (NSA/CA/SCA) in Eurostat - European Statistical Office Data Portal.

A table is only as good as the column you actually need. If this field is absent, sparsely populated or defined inconsistently across rows, no amount of surrounding richness rescues the analysis, so it deserves its own line in your evaluation checklist.

The failure mode is concrete: the label appears in a listing, the delivered files tell a different story, and the gap surfaces mid-project when fixing it is most expensive.

You rarely have to take a vendor's word for it. 82.4% of the 1,744 datasets Datadory catalogs are free to access, and Census M3 coverage lets you inspect the real artifact before any budget is committed.

Treat every claim of this attribute as testable:

1. Open Census M3 coverage and confirm its record — "both seasonally adjusted and not seasonally adjusted values" — against the files you actually receive.
2. Read International Trade Data Hub's record on granularity — "nominal and chained-2017-dollar, SA and NSA" — then confirm the delivered artifact matches before you license anything.
3. Open seasonally_adj field in U.S. Census Monthly Retail Trade Survey - Motor Vehicle and Parts Dealers and compare its listing against the delivered artifact before paying for a commercial equivalent.

See the term applied to real records: apparel-retail data, automotive-retail data.

Adjacent concepts worth reading next: - bulk download - Monthly Retail Trade Survey - NAICS codes - preliminary estimates and revisions - Short-term business statistics (sts_trtu_m)