Have you tried P2["20", "10", "0"] ? Jean
On Thu, Jun 1, 2017 at 3:10 PM, li li <hannah....@gmail.com> wrote: > Hi all, > I have a three dimensional array with the corresponding dimension names. > I would like to subset the array according to the dimension names. For > example, > suppose I want to extract the values corresponding to A=20, B=10, C=0. I > know I > can do: > P2[dimnames(P2)$A==20, dimnames(P2)$B==10, dimnames(P2)$C==0] > > But is there a better way for doing this? Thanks for your help! > Hanna > > > dimnames(P2) > > $A > > [1] "20" "25" "30" "35" "40" > > > $B > > [1] "5" "10" "15" "20" "25" "30" "35" "40" > > > $C > > [1] "0" "5" "10" "15" "20" "25" "30" "35" > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
