Postprocess contrast matrices
When using use_contrasts() with a function or matrix, there are shared postprocessing steps for manipulating the contrasts to set the reference level, intercept, and labels. If as_is is TRUE, then these post processing steps aren't included.
use_contrasts()
.postprocess_matrix( new_contrasts, code_by, reference_level, set_intercept, drop_trends, matrix_labels, labels, as_is, dots )
new_contrasts
code_by
reference_level
set_intercept
drop_trends
matrix_labels
labels
as_is
dots
Contrast matrix
Useful links