Try this also: Dt <- cbind(Age[o],Sex[o],Ill[o]) subset(as.data.frame(Dt), V3 != "No")
On Wed, Aug 20, 2008 at 3:24 PM, <[EMAIL PROTECTED]> wrote: > I think I should be clearer. Given the matrix of column vectors Age, Sex, > and Ill > > Age=c(11,52,65,59,13,63,70,40,15,33,65,38,62,10,25,32,62,36,11,33,13,7,64,3,65,59,15,62,37,17,35,15,50,40,35,35,36,57,16,68,54,77,72,58,20,17,62,20,52,9,50,8,35,48,25,11,74,12,44,53,37,24,69,7,17,8,11,17,36,21,60,18,14,52,45) > Sex=c("Male","Female","Male","Female","Female","Female","Male","Female","Female","Female","Male","Female","Female","Male","Male","Female","Female","Male","Male","Female","Female","Male","Male","Male","Female","Female","Female","Male","Female","Male","Male","Male","Female","Male","Female","Female","Male","Female","Female","Male","Female","Male","Female","Male","Male","Male","Female","Female","Female","Female","Male","Male","Female","Female","Male","Female","Male","Female","Female","Female","Male","Female","Female","Male","Female","Female","Female","Male","Female","Female","Male","Female","Female","Male","Female") > Ill=c("No","Yes","Yes","Yes","No","Yes","Yes","Yes","Yes","Yes","No","No","No","Yes","No","Yes","Yes","Yes","No","Yes","Yes","Yes","No","Yes","No","Yes","Yes","No","Yes","No","Yes","Yes","Yes","No","No","Yes","No","Yes","Yes","Yes","No","Yes","Yes","Yes","No","No","Yes","Yes","Yes","No","No","Yes","No","Yes","Yes","No","Yes","Yes","Yes","Yes","No","No","No","No","Yes","Yes","No","No","No","Yes","Yes","Yes","No","Yes","Yes") > o=order(Ill) > cbind(Age[o],Sex[o],Ill[o]) > > I am trying to remove all rows of the matrix in which the element in the Ill > column vector is "No". I appreciate any help you have to offer. > > Brian > > ______________________________________________ > 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 ______________________________________________ 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.