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[Octave-bug-tracker] [bug #44491] svd is slow and uses too much memory


From: Nir Krakauer
Subject: [Octave-bug-tracker] [bug #44491] svd is slow and uses too much memory
Date: Mon, 09 Mar 2015 21:54:16 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36

Follow-up Comment #5, bug #44491 (project octave):

I changed the script in the repository to use the economy SVD when n > p. This
seems to solve the problem:

d = 0.01;
x = [-100:d:100]';
X = [x,x];
tic; s = princomp(X, "econ"); toc #took 9 s before fix, 0.002 s after

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  <http://savannah.gnu.org/bugs/?44491>

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