Nothing
# :vim set filetype=R
Covariance(x) %::% matrix : matrix
Covariance(x) %as% x
Correlation(x) %::% matrix : matrix
Correlation(x) %as% x
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.