Log-transform Variables in a Data Frame

This function applies a log(x + 1) transformation to specified variables in a data frame. It handles NA values, warns and drops non-numeric selections, allows for exceptions, and can be applied to variables with specific prefixes.

Usage

margot_log_transform_vars(
  data,
  vars,
  exceptions = character(0),
  prefix = "log_",
  keep_original = TRUE
)

Arguments

data

a data frame to process.

vars

a character vector of variable names or a tidyselect helper (e.g., starts_with("hours_")).

exceptions

a character vector of variable names to exclude from transformation.

prefix

a string to prepend to the names of transformed variables. default is "log_."

keep_original

logical; if true, keeps both original and transformed variables. if false, replaces original. default is true.

Value

a data frame with log-transformed variables.