title: maximum size of a matrix in R
body: <p>I am using igraph to do some network analysis. As part of that, I have to create a matrix with 2 columns and as many rows as there are links.  I have a large network (several million links) and creating this matrix didn't work after 3 hours of run time (no errors, just no result, and it shows "not responding").</p>
  
  <p>What is the maximum size of such a character matrix? How long does it take to run?</p>
  
  <p>I am running 64 bit R 2.14.1, on a Windows 7 machine with 4 GB of memory running at 2.67 Ghz</p>
  
  <p>thanks</p>
  
  <p>ADDED
  Thanks for the quick responses.  This made me positive it wasn't the size of the matrix; it turned out to be an error in which columns of another matrix I was using to create that matrix.</p>