# identify rows with only positive values mydata.index <- apply(mydata, 1, function(x)all(x >= 0))
# create a new data frame/matrix with only those rows mydata.pos <- mydata[mydata.index,] Sarah On Thu, Aug 6, 2009 at 8:57 AM, Inchallah Yarab<inchallahya...@yahoo.fr> wrote: > Hi , > > I need to write a function to delete a row if the value of one element of the > row is negatif!!! > I have a big file of data and i will check every lines!!! > > Any ideas > Thank you !! > > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ 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.
