The default group_levels does nothing. This is desirable behavior for any structure that is not a list, data.frame or factor: there is no meaningful way apply group_levels to this type of structure.
1 2 | ## Default S3 method:
group_levels(data, maximum_levels = 32)
|
data |
A data.frame or factor. In the first case, |
maximum_levels |
Numeric. The maximum number of levels allowed per factor |
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.