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...uot;data.frame") and working from there, but the method merely sets up things for the generic function to render (it's likely I'm getting my terminology somewhat wrong here; please forgive) and what I want to do is beyond the bounds of modifying it in this way. I've looked through _Writing R Extensions_, but the Generic Functions and Methods chapter is only about a page long. Thanks on behalf of all the lurkers. I've learned much just by reading the daily digests over the last few weeks. Ari Ari Friedman abfriedman@gmail.com [[alternative HTML version deleted]]