#17341: visualize_structure for sparse matrices over GF(p) is broken
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Reporter: jhpalmieri | Owner:
Type: defect | Status: new
Priority: minor | Milestone: sage-7.1
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Jeroen Demeyer | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Jeroen Demeyer', 'oldvalue': ''}):
* milestone: sage-6.4 => sage-7.1
* author: => Jeroen Demeyer
Old description:
> The docstring for `visualize_structure` (from the file
> `matrix/matrix2.pyx`) says that the input is
> {{{
> - ``filename`` - either a path or None in which case a
> filename in the current directory is chosen automatically
> (default:None)
> }}}
> In fact, if `filename` is None, then the file gets silently saved in a
> temporary directory (by default a subdirectory of `DOTSAGE/temp`),
> leaving the user to wonder where their file went. I guess the right thing
> to do is to change the docstring, since I think that's how other methods
> for saving graphics work.
>
> (The docstring is also misformatted: `maxsize` should be in the bulleted
> list of inputs.)
New description:
{{{
sage: random_matrix(GF(2), 8, 586, sparse=True).visualize_structure()
IndexError: image index out of range
}}}
Solution: remove this specialized implementation, since the general one
from `Matrix` works just fine.
--
Comment:
`visualize_structure` no longer has a `filename` argument.
--
Ticket URL: <http://trac.sagemath.org/ticket/17341#comment:1>
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