You could use a for loop in a brute force approach. -----Original Message----- From: R-help <r-help-boun...@r-project.org> On Behalf Of Rui Barradas Sent: Sunday, August 6, 2023 7:37 PM To: Iris Simmons <ikwsi...@gmail.com>; Steven Yen <st...@ntu.edu.tw> Cc: R-help Mailing List <r-help@r-project.org> Subject: Re: [R] Stacking matrix columns
[External Email] Às 01:15 de 06/08/2023, Iris Simmons escreveu: > You could also do > > dim(x) <- c(length(x), 1) > > On Sat, Aug 5, 2023, 20:12 Steven Yen <st...@ntu.edu.tw> wrote: > >> I wish to stack columns of a matrix into one column. The following >> matrix command does it. Any other ways? Thanks. >> >> > x<-matrix(1:20,5,4) >> > x >> [,1] [,2] [,3] [,4] >> [1,] 1 6 11 16 >> [2,] 2 7 12 17 >> [3,] 3 8 13 18 >> [4,] 4 9 14 19 >> [5,] 5 10 15 20 >> >> > matrix(x,ncol=1) >> [,1] >> [1,] 1 >> [2,] 2 >> [3,] 3 >> [4,] 4 >> [5,] 5 >> [6,] 6 >> [7,] 7 >> [8,] 8 >> [9,] 9 >> [10,] 10 >> [11,] 11 >> [12,] 12 >> [13,] 13 >> [14,] 14 >> [15,] 15 >> [16,] 16 >> [17,] 17 >> [18,] 18 >> [19,] 19 >> [20,] 20 >> > >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://sta/ >> t.ethz.ch%2Fmailman%2Flistinfo%2Fr-help&data=05%7C01%7Ctebert%40ufl.e >> du%7C0777cc9a4f7b4d06730008db96d60c04%7C0d4da0f84a314d76ace60a62331e1 >> b84%7C0%7C0%7C638269618308876684%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w >> LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7 >> C&sdata=SuBbb9Zv2Zodb1p2Urk4a8yl%2FsGNfxUDxB7MqFlaTZc%3D&reserved=0 >> PLEASE do read the posting guide >> http://www/. >> r-project.org%2Fposting-guide.html&data=05%7C01%7Ctebert%40ufl.edu%7C >> 0777cc9a4f7b4d06730008db96d60c04%7C0d4da0f84a314d76ace60a62331e1b84%7 >> C0%7C0%7C638269618308876684%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM >> DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sda >> ta=usT0%2FPcAyZZsp7IorVV31xXBqlMvH6tO3758UmKja44%3D&reserved=0 >> 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%2Fmailman%2Flistinfo%2Fr-help&data=05%7C01%7Ctebert%40ufl.edu > %7C0777cc9a4f7b4d06730008db96d60c04%7C0d4da0f84a314d76ace60a62331e1b84 > %7C0%7C0%7C638269618308876684%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sda > ta=SuBbb9Zv2Zodb1p2Urk4a8yl%2FsGNfxUDxB7MqFlaTZc%3D&reserved=0 > PLEASE do read the posting guide > http://www.r/ > -project.org%2Fposting-guide.html&data=05%7C01%7Ctebert%40ufl.edu%7C07 > 77cc9a4f7b4d06730008db96d60c04%7C0d4da0f84a314d76ace60a62331e1b84%7C0% > 7C0%7C638269618308876684%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiL > CJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=us > T0%2FPcAyZZsp7IorVV31xXBqlMvH6tO3758UmKja44%3D&reserved=0 > and provide commented, minimal, self-contained, reproducible code. Hello, Yet another solution. t(t(c(x))) or x |> c() |> t() |> t() At first I liked it but it's the slowest of the three, OP's, Iris' (the fastest). Hope this helps, Rui Barradas ______________________________________________ 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. ______________________________________________ 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.
