You can let lapply() do the preallocation and the looping for you with ASL <- lapply(1:5, function(j) lapply(1:5, function(i) i^j))
Bill Dunlap TIBCO Software wdunlap tibco.com On Mon, Feb 16, 2015 at 9:46 AM, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > You have two named objects when your goal is to have one that contains > five others. > > ASL <- vector( "list", 5 ) > for (j in 1:5){ > ASL[[j]] <- vector( "list", 5 ) > for (i in 1:5) { > ASL[[j]][[i]] <- i^j > } > } > > --------------------------------------------------------------------------- > 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. > > On February 16, 2015 8:43:51 AM PST, Troels Ring <tr...@gvdnet.dk> wrote: > >Dear friends - this is simple I know but I can figure it out without > >your help. > >I have for each of 2195 instances 10 variables measured at specific > >times from 6 to several hundred, so if I just take one of the > >instances, > >I can make a list of the 10 variables together with their variable > >times. But when I have 2195 such instances I cannot get it how to make > >a > >list of these individual lists > > > >As a toy example demonstrating mercilessly my problem, if ASL[j] is > >mean > >to take the list of here 5 entries made in RES[[i]] and I write this > >(ignoring the times) it certainly doesn't work > >ASL <- list() > >RES <- list() > >for (j in 1:5){ > >for (i in 1:5) > >ASL[[j]] <- > > RES[[i]] <- i^j } > > > >All best wishes > >Troels Ring > >Aalborg, Denmark > > > >______________________________________________ > >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. > [[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.