Define an across-percent variable — define_across

Creates a definition that computes a percentage for every column matching a regex pattern. Each matched column becomes a numerator; the denominator is either a fixed column or computed by a function.

Usage

define_across_percent(
  input_regex,
  output_suffix,
  denominator = NULL,
  denominator_function = NULL,
  denominator_subtract = NULL,
  exclude_regex = NULL
)

Arguments

input_regex: A regex pattern to match input columns.
output_suffix: A string appended to each matched column name to form the output column name (e.g., "_percent").
denominator: A string. A fixed denominator column name.
denominator_function: A function that takes a matched column name and returns the denominator column name for that match.
denominator_subtract: A string. A column to subtract from the denominator value.
exclude_regex: A regex pattern to exclude from matched columns.

Value

A list with type = "across_percent" and the associated fields. Can be passed in the tables parameter of compile_acs_data.