Get active dimensions from a parameter

Returns the dimensions that are actually present in a parameter's data. For folded parameters, returns the reduced dimensions. For unfolded parameters, returns the original dimensions.

Usage

get_active_dims(param, folded = FALSE)

Arguments

param

A parameter object with dims and optionally active_dims

folded

Logical; if TRUE, returns folded dimensions only (returns NULL for unfolded parameters). If FALSE (default), returns active dimensions regardless of folding state.

Value

A dims object (list of set objects), or NULL if folded=TRUE and parameter is not folded

Details

During folding, parameters store active_dims which reflects the reduced dimensionality. This function provides a consistent way to retrieve the appropriate dimensions for code generation and validation.

Examples

if (FALSE) { # \dontrun{
# Get active dimensions (works for folded or unfolded)
dims <- get_active_dims(param)

# Check if parameter is folded
folded_dims <- get_active_dims(param, folded = TRUE)
is_folded <- !is.null(folded_dims)
} # }