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[Octave-bug-tracker] [bug #35570] Indexing of sparse vectors
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #35570] Indexing of sparse vectors |
Date: |
Mon, 20 Feb 2012 20:05:53 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2 |
Follow-up Comment #1, bug #35570 (project octave):
The bug is even a bit odder than it first seems. If the range is not exactly
over the entire column then the range index works correctly. Also, if the
matrix has more than one column the indexing works.
Examples:
s = sparse (5, 1);
s(3,1) = 1;
s(4:-1:1) # Works because start of range is not 5
s(5:-1:2) # Works because end of range is not 1
s = sparse (5, 2);
s(3,1) = 1;
s(5:-1:1, 1) # Works because matrix has another column
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