thanks Henrique I have another question.
Lets say i have a timeSeries table A B C 1/1/90 NA 1 2 1/2/90 NA 1 1 1/3/90 NA 1 -1 1/4/90 NA -1 1 1/5/90 1 1 1 1/6/90 1 51 1 I want to count is.numeric. since NA is not numeric A 1/1/90 2 1/2/90 2 1/3/90 2 1/4/90 2 1/5/90 3 1/6/90 3 Thanks again :) Cameron -- View this message in context: http://r.789695.n4.nabble.com/RowSums-Question-tp3049261p3049421.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.