Thank you Arun, that was exactly what I was looking for. This is the second time you helped me in this mailing list. Thanks!
And also thanks to all of the others of you whou helped me. It is amazing how many possibilities there are to solve my problem (which isn't a prob now anymore). Have a great day, Tagmarie -- View this message in context: http://r.789695.n4.nabble.com/count-NAs-per-week-tp4643351p4643486.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.
