Thank you both. These solutions are far more elegant than anything I could have come up with, and I appreciate the opportunity to learn new commands within the context of my own data.
I think I've got it working now. :) -- View this message in context: http://r.789695.n4.nabble.com/Count-of-rows-while-looping-through-data-tp3547949p3553201.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.