FYI, the matrix you tried to allocate would hold (3195*1290*495*35*35*35*15) * 3 = 3.936248e+15 values. Each value would occupy 8 bytes of memory (for the double data type). In other words, in order to keep this data matrix in memory you would require a computer with at least 3.148998e+16 bytes of RAM, i.e. 29327331 GiB = 28640 TiB = 28 PiB. Storing such a large matrix even on file is not possible.
In other words, you need to figure out how to approach your original problem in a different way. /Henrik On Sun, Jan 24, 2016 at 8:46 AM, li li <hannah....@gmail.com> wrote: > Hi all, > I am doing some calculation with very large dimension. I need to create a > matrix > with three columns and a very large number of rows > (3195*1290*495*35*35*35*15=1.312083e+15) i > n order to allocate calculation result from a for loop. > R does not allow me to create such a matrix because of the large dimension > (see below). Is there a way to go around this? > Thanks very much!! > Hanna > > >> matrix(0, 3195*1290*495*35*35*35*15, 3) > Error in matrix(0, 3195 * 1290 * 495 * 35 * 35 * 35 * 15, 3) : > invalid 'nrow' value (too large or NA) > In addition: Warning message: > In matrix(0, 3195 * 1290 * 495 * 35 * 35 * 35 * 15, 3) : > NAs introduced by coercion >> > > [[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. ______________________________________________ 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.
