contrastable (version 1.0.2)

use_contrasts.name: Symbol method for use_contrasts

Description

Evaluates code_by, then applies the appropriate use_contrasts method

Usage

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

Value

A contrast coding matrix with labels and proper reference level

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

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)