Try this. Suppose your list of matrices is in the list locL. nc <- 3
locL2 <- list() for ( i in 1:length(locL ) locL2[[i]] <- as.numeric(t(locL[[i]])) bigMat <- matrix(unlist(locL3), ncol=nc, byrow=TRUE) HTH, Eric On Sun, Jun 10, 2018 at 6:33 PM, Christofer Bogaso < bogaso.christo...@gmail.com> wrote: > Hi, > > I have a list of length 10,000, and each element of that list is a matrix > with 3 columns and 2,000 rows. > > Now when I tried to make a Matrix object with that list using > Reduce('rbind', list), my code is taking a considerable amount of time. > > Is there any way to implement same above task in more efficient way? > > Thanks, > > [[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.