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Scalar Variable Generation Helpers

Source: R/scalar_helpers.R
get_variable_details_for_raw.Rd

Helper functions for scalar variable generation (single variables at a time). Used by create_cat_var(), create_con_var(), create_date_var() when called with individual variable parameters (var_raw, cycle, etc.) rather than configuration data frames.

Usage

get_variable_details_for_raw(
  var_raw,
  cycle,
  variable_details,
  variables = NULL
)

Arguments

var_raw

Character. Raw variable name (e.g., "alc_11", "HGT_CM")

cycle

Character. Cycle identifier (e.g., "cycle1", "cchs2001")

variable_details

Data frame. Full variable_details metadata

variables

Data frame. Optional variables metadata (not used currently)

Value

Data frame subset of variable_details for this variable + cycle

Details

These helpers work with recodeflow-style metadata (variables.csv + variable_details.csv from cchsflow/chmsflow). Get variable details for raw variable and cycle

Filters variable_details to rows matching a specific raw variable name and cycle. Handles multiple naming patterns from recodeflow packages.

Tries three matching strategies in order:

  1. Database-prefixed format: "cycle::var_raw"

  2. Bracket format: "[var_raw]" with databaseStart filtering

  3. Plain format: exact match on variableStart with cycle filtering