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...tc. are columns from a second data frame, say, "study". So in summary how do I create a variable based on the entries in "meta" (e.g. from 'APS' I want to create 'cAPS') using a column in another data frame again based on the entry in "meta" (eg, ADS0, ADS12, etc...). I hope that this explains my problem clearly, if not please let me know. Thanks for your help in advance, Saghir Before I get flamed for what might be a simple solution to a previously discussed problem on this list or addressed in the FAQs, I have tried extensively (for 3 days now!!!...

...s there a better way? One other question. At the end of term I want to print up the spreadsheet (name, student#, test1, test2, etc). The marks will all be in a data frame. Is it possible to get a print out like: Name Number test1 test2 test3 ... ----------------------------------------------- bob ads12 10 20 30 joe gfd73 20 30 50 ... (I know this is not using data.entry, but the idea of using data.entry is to simulate a spreadsheet, and one thing you do with spreadsheets is make print-outs like this) Thanks for any help! BTW I think it would be helpful to have a little write-up in Notes on R,...