Reads the per-partition column dictionary that accompanies every published CORE Series file. One row per column in the matching data file, with the harmonized name, source variable + location, dtype, null/non-null counts, and the vintages where that column was populated.
Usage
nccs_core_columns(
tier = c("merged", "soi", "legacy"),
tax_year,
form,
pattern = NULL
)Arguments
- tier
One of `"merged"` (default, canonical), `"soi"`, or `"legacy"`. See Description.
- tax_year
Integer tax year.
- form
Character form code: `"990"`, `"990ez"`, `"990pf"`, or `"990combined"`. Not every form exists in every tier — see Description.
- pattern
Optional case-insensitive regex applied to `harmonized_name` and `description`. `NULL` (default) returns the full dictionary.