This function makes use of
CJ function of the data.table package to perform a
cross join. The function makes sure that the combinations are unique and removes NAs before
joining. doUniqueCJ is rather not used as a standalone function but inside
character vector that denotes names of relevant columns
Matthias Bannert, Gabriel Bucur
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.