On Oct 2, 2010, at 11:14 AM, Carrie Li wrote: > Hi everyone, > > If I run on a 64-bit R, what is the maximum matrix size that it can handle ? > Is a matrix 20,000 x 20,000 possible on 32 bit ? > Thanks for answering!
A matrix is a vector with 'dim' attributes. The maximum vector length is 2^31 - 1 and that does not change between 32 and 64 bit R. The primary advantage of 64 bit R is the larger memory address space. See: http://cran.r-project.org/doc/manuals/R-admin.html#Choosing-between-32_002d-and-64_002dbit-builds HTH, Marc Schwartz ______________________________________________ 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.
