...
All vectors passed to `...` must be of the same length.
...
x The index supplied to `...` are not numeric:
i 2
...
VS levels`levels` must be a character vector with the same length as the number of vectors passed to `...`.
levels
(#42)`levels` must be a character vector of length 2.
`levels` must be a character vector with the same length as the number of vectors passed to `...`.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.