Genius! Thanks very much Hadley - that was surprisingly easier to solve than I was anticipating!
As a way of offering something back in return, I don't know if you plan to release a new version of the reshape package, but here's a suggestion to consider, just in case you do. On the basis of what I've learned from this experience, how about including a simple line of code in the next release, along the lines of is.data.frame(object_name) - if TRUE then proceed as normal, if FALSE then issue a warning/error message to inform the user that the procedure may not execute as intended and suggest coercing to a data frame. Apologies if I've overlooked something fundamental which prevents the need or feasibility of this idea - just thought I'd bring it up in case it is useful! Thanks again and all the best, Steve ______________________________________________ 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.
