Thanks all - I'm fairly new to R, so I was oblivious to the pros and cons of using a data frame as opposed to a list! The 'get' command also seemed to work successfully.
Thanks again, Steve _________________________________________________________________ 25GB of FREE Online Storage – Find out more ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.