Do you mean you wish to create a vector without the trailing NAs but with the others? If so, try:
library(zoo) head(x, length(na.locf(x, rev = TRUE))) or library(zoo) head(x, length(na.locf(rev(x)))) On 3/2/06, Robert Lundqvist <[EMAIL PROTECTED]> wrote: > I wonder if anyone could help me find an expression for skipping the last > missing values in a vector? The kind of material I have is something like > > x<-c(23,12,NA,23,24,21,NA,NA,NA) > > I would like to skip the last NA's, but not the ones in between other > vallues. Any hints? (Why not do this by simply take x[1:6]? I have several > vectors a couple of thousand observations long with varying numbers of > NA's in the end. I'd prefer not to search through all of these one at a > time.) > > Robert > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
