-roger
Arnav Sheth wrote:
Hello,
Thank you all for your replies.
I have just discovered that now, for some reason, R does not let me increase its memory limit beyond 4095 Mb.
Also, I get a different error message when computing the matrix using daisy() as opposed to dist():
Error: Cannot allocate vector of size 135168 Kb
Does this mean that there is no way in which I can compute this distance matrix on the machine I described below?
Is there any possible solution to this problem?
Thanks again to all, Arnav.
----- Original Message ----- From: "Prof Brian Ripley" <[EMAIL PROTECTED]> To: "Arnav Sheth" <[EMAIL PROTECTED]> Cc: "R-Help" <[EMAIL PROTECTED]> Sent: Wednesday, February 25, 2004 2:12 PM Subject: Re: [R] Computing very large distance matrix
On Wed, 25 Feb 2004, Arnav Sheth wrote:
Hello All,
I have a 131072x132 matrix for which I need to compute a regular
euclidean distance matrix, which I then need to transform and run agnes() on this transformed matrix. I am having trouble computing the distance matrix as it is fairly large and I am sure I have gone over the max.
The specific error I am getting is: Error in vector("double", length) : negative length vectors are not
allowed
We've improved that message for the next release.
I have increased the memory limit to the maximum capacity of my hard drive (which is around 20gb), with no success.
You'd need to increase the 32-bit limit of Windows, too ....
I am running the RGUI on Windows XP with 512 mb of RAM.
Would anyone have any suggestions as to how I can overcome this problem? I would be most grateful for any help.
No. The distance matrix is 8Gb all by itself.
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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