use_contrasts.AsIs {contrastable} | R Documentation |
AsIs method for use_contrasts
Description
Evaluates code_by
, then applies the appropriate use_contrasts method
Usage
## S3 method for class 'AsIs'
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
use_contrasts(gl(5,1), I(scaled_sum_code))
[Package contrastable version 1.0.2 Index]