[R] One to One Matching multiple vectors
Dear R helpers Suppose, x = c(0, 1, 2, 3) y = c(A, B, C, D) z = c(1, 3) For given values of z, I need to the values of y. So I should get B and D. I tried doing y[x][z] but it gives y[x][z] [1] A C Kindly guide. Regards Vincy [[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.
Re: [R] One to One Matching multiple vectors
Hello Vincy. You probably want y[match(z,x)] Or, more instructional: whereAreZInX-match(z, x) y[whereAreZInX] HTH, Nick Sabbe -- ping: nick.sa...@ugent.be link: http://biomath.ugent.be wink: A1.056, Coupure Links 653, 9000 Gent ring: 09/264.59.36 -- Do Not Disapprove -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Vincy Pyne Sent: woensdag 16 maart 2011 10:42 To: r-help@r-project.org Subject: [R] One to One Matching multiple vectors Dear R helpers Suppose, x = c(0, 1, 2, 3) y = c(A, B, C, D) z = c(1, 3) For given values of z, I need to the values of y. So I should get B and D. I tried doing y[x][z] but it gives y[x][z] [1] A C Kindly guide. Regards Vincy [[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.
Re: [R] One to One Matching multiple vectors
y[which(x %in% z)] On 3/16/2011 10:42 AM, Vincy Pyne wrote: Dear R helpers Suppose, x = c(0, 1, 2, 3) y = c(A, B, C, D) z = c(1, 3) For given values of z, I need to the values of y. So I should get B and D. I tried doing y[x][z] but it gives y[x][z] [1] A C Kindly guide. Regards Vincy [[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. __ 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.
