Thanks a lot Giorgio, I used memory.limit(size=4096)
but got don't be silly!: your machine has a 4Gb address limit I'm working on my Ph.D. thesis and I have a huge code of which this is just a very small part, so does this error mean that I need a new computer with extended capabilites to be able to execute my code?? I'm currently using intel core i3, windows 7 Thanks for helping. Maram On 1 October 2015 at 13:37, Giorgio Garziano <giorgio.garzi...@ericsson.com> wrote: > Check your memory size by: > > > > memory.limit() > > > > try to increase it by: > > > > memory.limit(size=4096) > > > > > > > > *From:* Maram SAlem [mailto:marammagdysa...@gmail.com] > *Sent:* giovedì 1 ottobre 2015 13:22 > *To:* Giorgio Garziano > *Cc:* r-help@r-project.org > *Subject:* Re: [R] (subscript) logical subscript too long > > > > Thanks Giorgio, I got it. > > > > I managed to reach the matrix s whose rows represent all the possible > combinations. Here is the code: > > > > > n=12 > > > m=7 > > > D<-matrix(0,nrow=n-m+1,ncol=m-1) > > > for (i in 1:m-1) > > + { > > + D[,i]<-seq(0,n-m,1) > > + } > > > ED <- do.call(`expand.grid`,as.data.frame(D)) > > > ED<-as.matrix(ED) > > > lk<-which(rowSums(ED)<=(n-m)) > > > s<-ED[lk,] > > > > The problem now is that the code works only for relatively small values of > n and m, but when I use, for ex., n=20 and m=9, I got this error > > > > > n=20 > > > m=9 > > > D<-matrix(0,nrow=n-m+1,ncol=m-1) > > > for (i in 1:m-1) > > + { > > + D[,i]<-seq(0,n-m,1) > > + } > > > ED <- do.call(`expand.grid`,as.data.frame(D)) > > > > *Error: cannot allocate vector of size 1.6 Gb* > > > > *Any Suggestions please?* > > > > *Thanks Again.* > > *Maram* > > > > On 30 September 2015 at 17:41, Giorgio Garziano < > giorgio.garzi...@ericsson.com> wrote: > > Be: > > log <- (rowSums(ED) <= (n - m)) > > > Compare the following two values: > > > > > > length(log) > > > > > > nrow(w) > > > > > > -- > > GG > > > [[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.
