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[Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th i
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter |
Date: |
Mon, 24 Mar 2014 03:40:50 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:28.0) Gecko/20100101 Firefox/28.0 |
Update of bug #41839 (project octave):
Status: None => Fixed
Open/Closed: Open => Closed
_______________________________________________________
Follow-up Comment #5:
I reviewed your patch and checked it in here
(http://hg.savannah.gnu.org/hgweb/octave/rev/35a5e7740a6d).
sprand/sprandn had not been reviewed in a long time so I followed it up by
overhauling the functions in this changeset
(http://hg.savannah.gnu.org/hgweb/octave/rev/54a1e95365e1).
I did some tricks, like replacing the do/until loop with randperm and
pre-calculating the speye() portion of the U/V matrices outside the loop, to
speed things up. Although the algorithm works, it seems pretty slow for large
matrices.
tic; x = sprand (1e3, 1e3, 0.3, 0.7); toc
Elapsed time is 11.2219 seconds.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?41839>
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- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions with 4rth parameter missing in Octave, Eduardo Ramos Fernández, 2014/03/11
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions with 4rth parameter missing in Octave, Eduardo Ramos Fernández, 2014/03/12
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions with 4rth parameter missing in Octave, Kai Torben Ohlhus, 2014/03/20
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions with 4rth parameter missing in Octave, Eduardo Ramos Fernández, 2014/03/21
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter, Rik, 2014/03/22
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter, Eduardo Ramos Fernández, 2014/03/22
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter, Eduardo Ramos Fernández, 2014/03/22
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter,
Rik <=
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter, Eduardo Ramos Fernández, 2014/03/24
- [Octave-bug-tracker] [bug #41839] sprand/sprandn functions missing 4th input parameter, Rik, 2014/03/24