error using etree function

[rpsouto]

Hello all.

The function etree is not working.

A=gallery('poisson',16);
issparse(A)

ans = 1

etree(A)

error: etree: S must be a sparse matrix

This test was performed at versions 4.4.1 and 4.2.2 of GNU Octave
(Ubuntu 18.04).

Regards,

Roberto.

[Dmitri A. Sergatskov]

Post by rpsouto
Hello all.
The function etree is not working.

A=gallery('poisson',16);
issparse(A)

ans = 1

etree(A)

error: etree: S must be a sparse matrix
This test was performed at versions 4.4.1 and 4.2.2 of GNU Octave
(Ubuntu 18.04).

On Fedora (octave 4.4.1) I see:

octave -f -q
octave:1> A=gallery('poisson',16);
octave:2> issparse A
ans = 0
octave:3> __octave_config_info__ ("hg_id")
ans = 1f46d371968c

Post by rpsouto
Regards,
Roberto.

Dmitri.
--

[Marco Atzeri]

Post by rpsouto
Hello all.
The function etree is not working.

A=gallery('poisson',16);
issparse(A)

ans = 1

etree(A)

error: etree: S must be a sparse matrix
This test was performed at versions 4.4.1 and 4.2.2 of GNU Octave
(Ubuntu 18.04).
octave -f -q
octave:1> A=gallery('poisson',16);
octave:2> issparse A
ans = 0

you are missing the parenthesis

octave:8> issparse A
ans = 0
octave:9> issparse(A)
ans = 1



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[Kai Torben Ohlhus]

Post by Dmitri A. Sergatskov
octave:1> A=gallery('poisson',16);
octave:2> issparse A

etree(speye (2))

error: etree: S must be a sparse matrix

I think it is worth a bug report...

Kai

[mmuetzel]

There was an error in the input argument check for etree. This and an
additional segmentation fault should be fixed with this change:
http://hg.savannah.gnu.org/hgweb/octave/rev/0c7a9fa16998

Markus



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