Thanks, everybody, this has been very edifying. One last question: It seems that sometimes when a function returns something and you don't assign it, it prints to the console, and sometimes it doesn't. I'm not sure I understand which is which. My best current theory is that, if the function returns NULL, by itself and not as part of some larger object, it does not print it, but non-null values are printed. Is that correct?
Thanks! Andrew -- View this message in context: http://r.789695.n4.nabble.com/Using-str-in-a-function-tp3655785p3670513.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.