dummy_code: Dummy-code variable

In LukasWallrich/timesaveR: Functions to Accelerate (Academic) Data Analysis and Reporting

Dummy-code variable

Description

Turns a categorical variable into a tibble of n-1 dummy-coded values. If x is a factor, the first level is omitted and thus treated as the reference level (to match the behavior of lm() and related functions). If x is not a factor, the first value in x is treated as the reference level. Variable names returned include a common prefix and a cleaned up version of the factor levels (without special characters and in snake_case).

Usage

dummy_code(x, prefix = NA, drop_first = TRUE, verbose = interactive())

Arguments

x	The categorical variable to be dummy-coded
prefix	String to be pre-fixed to the new variable names (typically the name of the variable that is dummy-coded). If NULL, variables are just named with the levels. If left as NA, the function will try to extract the name of the variable passed.
drop_first	Should first level be dropped? Defaults to TRUE
verbose	Should message with reference level be displayed?

Examples

dummy_code(iris$Species)

LukasWallrich/timesaveR documentation built on Nov. 29, 2024, 4:47 a.m.