x[!is.na(x[, 3]), ] HTH, Dennis
On Fri, May 14, 2010 at 12:16 PM, Ryan Utz <utz.r...@gmail.com> wrote: > Hi all, > > I'm relatively new to R and have a data management problem. I am importing > a > data matrix with some columns that have missing values. I am trying to > figure out how to delete rows with NA for data FOR JUST ONE SPECIFIED > column. For instance, with the example matrix: > > x<-matrix(nrow=5,ncol=3) > x[,]<-1 > x[5,1]<-NA > x[3,3]<-NA > > how do I tell R to delete any rows with an NA value in column 3, but NA in > column 1 is just fine? I've played with na.omit but that just takes out all > of the NA values... > > Thanks ahead of time for any help, > Ryan Utz > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.
