Determine proportions for categorical variable generation

Helper function to determine proportions for categorical variables based on priority: explicit parameter > metadata column > uniform distribution

Usage

determine_proportions(categories, proportions_param, var_details)

Arguments

categories

character vector. Category codes/values

proportions_param

Proportions specification. Can be:

• NULL: Use uniform distribution

• Named list: Maps category codes to proportions

• Numeric vector: Proportions in same order as categories

var_details

data.frame. Variable details metadata (may contain proportion column)

Value

Numeric vector of proportions (normalized to sum to 1), same length as categories

Details

Priority order:

1. proportions_param if provided (explicit user specification)

2. proportion column in var_details if present

3. Uniform distribution (fallback)