Duncan Murdoch-2 wrote: > > On 11-10-30 2:52 PM, Alaios wrote: >> Dear all, >> >> Could you please explain me why >> >>> OverloadsTesT >> [1] 1 0 1 0 0 0 0 0 0 0 >>> a<-matrix(data=seq(1,10),nrow=10) >>> a >> [,1] >> [1,] 1 >> [2,] 2 >> [3,] 3 >> [4,] 4 >> [5,] 5 >> [6,] 6 >> [7,] 7 >> [8,] 8 >> [9,] 9 >> [10,] 10 >>> a[-OverloadsTesT] >> [1] 2 3 4 5 6 7 8 9 10 >> >> >> >> the last line does not remove the first and third element and only does >> the first element.? >> >> What I want to do is for zeros to return the elements and for any >> positive value to remove it. >> What I am doing wrong? > > You are asking it to remove item 1, and it does. If you want to negate > a logical vector, you need to use a logical vector and negate it, e.g. > > OverloadsTesT <- as.logical(OverloadsTeSt) > a[!OverloadsTest] > > Duncan Murdoch > >
Or: a[-c(1,3)] -- David. -- View this message in context: http://r.789695.n4.nabble.com/why-the-a-indx-does-not-work-tp3953737p3953815.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
