check_variables_exist: Check if Variables Exist in Data

In PSsurvival: Propensity Score Methods for Survival Analysis

Check if Variables Exist in Data

Description

Verifies that all variables referenced in formulas exist in the dataset.

Usage

check_variables_exist(data, treatment_var, ps_formula, censor_formula)

Arguments

data	A data.frame containing the analysis data.
treatment_var	Character string of treatment variable name.
ps_formula	Formula object for propensity score model.
censor_formula	Formula object for censoring model.

Value

Invisible NULL if all checks pass; otherwise throws an error.

PSsurvival documentation built on Dec. 9, 2025, 9:07 a.m.