Hi: 2^40 [1] 1.099512e+12
Do you have enough memory for almost 1.1 trillion rows and 40 columns? This is a good example of the 'power law' that Stephen Strogatz discussed in his New York Times article today: http://opinionator.blogs.nytimes.com/2010/03/28/power-tools/?hp HTH, Dennis On Mon, Mar 29, 2010 at 8:27 PM, Bogaso <bogaso.christo...@gmail.com> wrote: > > Hi, good morning, > > I got following error which looks strange to me while executing this code : > > > temp <- expand.grid(rep(list(c(1,0)),40)) > Error in rep.int(rep.int(seq_len(nx), rep.int(rep.fac, nx)), orep) : > invalid 'times' value > In addition: Warning message: > In rep.int(rep.int(seq_len(nx), rep.int(rep.fac, nx)), orep) : > NAs introduced by coercion > > > However if I put a small number like 12 in place of 40, it is working fine. > A moderately bigger number than 10 like 30 give a memory related error : > > > temp <- expand.grid(rep(list(c(1,0)),20)) > Warning messages: > 1: Reached total allocation of 1535Mb: see help(memory.size) > 2: Reached total allocation of 1535Mb: see help(memory.size) > 3: In attributes(.Data) <- c(attributes(.Data), attrib) : > Reached total allocation of 1535Mb: see help(memory.size) > 4: In attributes(.Data) <- c(attributes(.Data), attrib) : > Reached total allocation of 1535Mb: see help(memory.size) > > But I badly need to execute this code for a large number like 150 (which I > dont think a big number at all). Is there any other way to do the same > task? > Your help will be highly appreciated. > > I am working with R-2.10.1 within Vista with a 3gb RAM. > > Thanks > > -- > View this message in context: > http://n4.nabble.com/Problem-with-expand-grid-function-tp1740345p1740345.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.
