Pair the terms of the utility functions with their parameters

Splits each updated utility function into its additive terms and pairs each term with its parameter, e.g. "b_x1x2 * I(alt1_x1 * alt1_x2)". The function is used on the output of update_utility, where dummy-coded attributes are already expanded.

pair_param_terms(x)

Arguments

x

A list of updated utility functions returned by update_utility

Value

A list with one named character vector per utility function. The values are the parameter names and the names are the terms, both without whitespace.