warn_if_vars_exist: Warn If a Variable Already Exists

In admiraldev: Utility Functions and Development Tools for the Admiral Package Family

Warn If a Variable Already Exists

Description

Warn if a variable already exists inside a dataset

Usage

warn_if_vars_exist(dataset, vars)

Arguments

dataset	A data.frame Default value none
vars	character vector of columns to check for in dataset Default value none

Value

No return value, called for side effects

See Also

Function that provide users with custom warnings suppress_warning(), warn_if_incomplete_dtc(), warn_if_inconsistent_list(), warn_if_invalid_dtc()

Examples

library(dplyr, warn.conflicts = FALSE)
dm <- tribble(
  ~USUBJID,           ~ARM,
  "01-701-1015", "Placebo",
  "01-701-1016", "Placebo",
)

## No warning as `AAGE` doesn't exist in `dm`
warn_if_vars_exist(dm, "AAGE")

## Issues a warning
warn_if_vars_exist(dm, "ARM")

admiraldev documentation built on June 26, 2025, 1:09 a.m.