deconstruct_formula {basecamb}

Deconstruct formula

Description

Deconstruct a formula object into strings of its components. Predictors are split by '+', so interaction terms will be returned as a single string.

Usage

deconstruct_formula(formula)

Arguments

formula

formula object for use in statistical models.

Value

a named list with fields:

• outcome (character)

• predictors (vector of characters)

• censor_event (character) (optional) censor event, only for formulas including a Surv() object

Author(s)

J. Peter Marquardt

Examples

deconstruct_formula(stats::as.formula("outcome ~ predictor1 + predictor2 + predictor3"))
deconstruct_formula(stats::as.formula("Surv(outcome, censor_event) ~ predictor"))