col_dummy: Apply explicit dummy coding to a data frame

In yjunechoe/junebug: A person collection of functions, mostly for interactive use

Description

Apply explicit dummy coding to a data frame

Usage

col_dummy(data, factor, reference = NULL)

Arguments

data	A data frame to be passed in (e.g., via piping)
factor	A name of a factor column. Can be quoted or unquoted
reference	A string of the level that should be coded as the reference level. Defaults to the first level of the factor if one is not provided.

Value

A data.frame. A tibble passed into data is returned as a tibble.

Examples

# column name can be quoted or unquoted
col_dummy(iris, "Species", reference = "virginica")
col_dummy(iris, Species, reference = "virginica")

# model interpretation is the same
lm(Sepal.Length ~ Species, data = iris)
lm(Sepal.Length ~ Speciesversicolor + Speciesvirginica, data = col_dummy(iris, Species))

yjunechoe/junebug documentation built on July 9, 2021, 7:12 p.m.