Try this:
is.na(spdco2[,2]) <- which(spdco2[,2] < 4.7) spdco2 On Thu, Sep 4, 2008 at 4:21 PM, Sherri Heck <[EMAIL PROTECTED]> wrote: > Hi All- > > I have a data set (spdco2) > > > spdco2 > [,1] [,2] [,3] > [1,] 1 5.4 382.4212 > [2,] 2 5.1 383.0315 > [3,] 3 4.8 383.9520 > [4,] 4 4.7 384.4376 > [5,] 5 4.7 384.5929 > [6,] 6 4.4 384.8864 > [7,] 7 4.1 385.2156 > [8,] 8 3.8 385.2919 > [9,] 9 3.7 385.5925 > [10,] 10 3.9 385.6801 > > > I am subsetting it to output when [,2] is >= 4.7 . > x<-subset(spdco2,spdco2[,2]>=4.7) > > This works, but I would like to add 'NA' to the data that it does exclude > based on my subset criteria. I have searched through the archives and two R > books, but I cannot figure out how to add the NA. > Any suggestions would be appreciated- > > thanks! > > sherri > > > > > > x<-subset(spdco2,spdco2[,2]>=4.7) > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[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.
