Nothing
"disjunctive" <-
function(strata)
{ss=cleanstrata(strata)
m=matrix(0,length(strata),length(unique(strata)))
for(i in 1:length(ss)) m[i,ss[i]]=1
m
}
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.