dot-process_contrasts function

Pass arguments to contrast code

Processes a formula and any arguments for the contrast matrix and sets up the use_contrasts call

.process_contrasts(model_data, raw_formula, omit_drop)

Arguments

• model_data: Data frame with factor column
• raw_formula: Raw formula
• omit_drop: Logical, set to TRUE when set_contrasts is used by appending an attribute to the formula list, otherwise is FALSE (as in enlist_contrasts)

Returns

A contrast matrix