I was going to swot up on data storage models before I got involved, but Todd's suggestion for local replacement functions (i.e. capitalize the function name) has to get a vote. This seems to have considerable precedent, and would tend to better integrate R with common programming conventions, which makes it a lot easier for incoming users to understand. Jim -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._