On Fri, Jul 04, 2008 at 04:44:53PM +1000, Andrew Robinson wrote: > Hi Keld > > you should read ?sum. > > sum(c(1,2,NA), na.rm=TRUE)
Thanks, that solved my problem. Best regars keld > Cheers > > Andrew > > On Fri, Jul 04, 2008 at 08:29:34AM +0200, Keld J?rn Simonsen wrote: > > Hi > > > > I would like to sum a number of time series, some of them having NA's > > > > Standard action is here that if I sum a value with a NA, then the result > > is NA. I would like it to just keep the value. > > > > I then try to: > > > > a = NA; if (a == NA) { a = 0} > > > > just to try it out, but it says > > > > Error in if (a == NA) { : missing value where TRUE/FALSE needed > > > > What is wrong, and can I do it smarter? I looked at na.action but I > > don't see how it affects addition of vectors, nor time series. > > > > Best regards > > keld > > > > ______________________________________________ > > 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. > > -- > Andrew Robinson > Department of Mathematics and Statistics Tel: +61-3-8344-6410 > University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 > http://www.ms.unimelb.edu.au/~andrewpr > http://blogs.mbs.edu/fishing-in-the-bay/ ______________________________________________ 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.