Nothing
mad <- function(x, red = TRUE){
lvls <- levels(as.factor(x))
res <- data.frame(sapply(lvls, function(y) ifelse(x==y, 1, 0)))
names(res) <- lvls
if(!red){res <- res[,-length(lvls)]}
return(res)
}
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.