Thanks, Jeff. Here is a simplified hypothetical sample (sorry for the clumsy code): A1 <- matrix(1:5, nrow=5, ncol=1) A2 <- matrix(6:10, nrow=5, ncol=1) A3 <- matrix(11:15, nrow=5, ncol=1) A4 <- matrix(16:20, nrow=5, ncol=1) A5 <- matrix(21:25, nrow=5, ncol=1) A6 <- matrix(26:30, nrow=5, ncol=1) B1 <- matrix(c(A1, A2, A3), nrow=5, ncol=3) B2 <- matrix(c(A2, A3, A4), nrow=5, ncol=3) B3 <- matrix(c(A3, A4, A5), nrow=5, ncol=3) C <- array(c(B1, B2, B3), dim = c(5,3,3)) D1 <- matrix(c(A1, A4, A5), nrow=5, ncol=3) D2 <- matrix(c(A3, A5, A6), nrow=5, ncol=3) E <- array(c(D1, D2), dim = c(5,3,2)) In the above example, I want to merge array C to array E by matching the column 1. That is, the resultant array F should look like this: F1 <- matrix(c(A1, A4, A5, A2, A3), nrow=5, ncol=5) F2 <- matrix(c(A3, A5, A6, A4, A5), nrow=5, ncol=5) F <- array(c(F1, F2), dim = c(5,5,2))
I want to have a more general way to do the merging because in reality, the dimensions of C and E are very over thousands. Thank you very much. Best Regards, ray On Fri, Feb 22, 2013 at 11:28 AM, Jeff Newmiller <jdnew...@dcn.davis.ca.us>wrote: > I think this specification is insufficient to respond accurately to. > Please make a reproducible subset of your data (or simulated data) and > provide it in dput form, and describe your desired result data set more > clearly. > > > http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example > > --------------------------------------------------------------------------- > Jeff Newmiller The ..... ..... Go Live... > DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live > Go... > Live: OO#.. Dead: OO#.. Playing > Research Engineer (Solar/Batteries O.O#. #.O#. with > /Software/Embedded Controllers) .OO#. .OO#. rocks...1k > --------------------------------------------------------------------------- > Sent from my phone. Please excuse my brevity. > > Ray Cheung <ray1...@gmail.com> wrote: > > >Dear All, > > > >I've 2 arrays A and B: > > > >dim(A) = 100, 10, 1000 > >dim(B) = 100, 20, 900 > > > >I know there are 5 columns of values common to both arrays. I want to > >ask > >how to merge the 2 arrays. Thanks in advance! > > > >Best Regards, > >Ray > > > > [[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. > > [[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.
