use_contrasts.name: Symbol method for use_contrasts

In contrastable: Consistent Contrast Coding for Factors

Symbol method for use_contrasts

Description

Evaluates code_by, then applies the appropriate use_contrasts method

Usage

## S3 method for class 'name'
use_contrasts(
  factor_col,
  code_by = NA,
  reference_level = NA,
  set_intercept = NA,
  drop_trends = NA,
  labels = NULL,
  as_is = FALSE,
  ...
)

Arguments

factor_col	A factor vector, eg from df$factorVarName
code_by	A symbol to be evaluated
reference_level	The level to use as the reference level, default NA
set_intercept	The intercept to use, default NA
drop_trends	The trends to drop, default NA
labels	A vector of labels to apply to the matrix column names, default NULL (no new labels)
as_is	Logical, default FALSE, whether to leave the resulting matrix as-is
...	Additional arguments to be passed on

Value

A contrast coding matrix with labels and proper reference level

Examples

aliased_scheme <- sum_code
contrast_scheme <- rlang::sym("aliased_scheme")

# Result will be as if sum_code was used directly
use_contrasts(gl(5,1), contrast_scheme)

contrastable documentation built on Oct. 1, 2024, 5:07 p.m.