bugGNU Octave - Bugs: bug #30968, incorrect sign in conv2 (...,...

 
 

bug #30968: incorrect sign in conv2 (..., 'valid')

Submitter:  Thorsten Meyer <tmeyier>
Submitted:  Sun 05 Sep 2010 12:15:12 PM UTC
   
 
Category:  Interpreter Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Fixed Assigned to:  highegg
Originator Name:  Thorsten Meyer Open/Closed:  * Closed
Release:  * dev Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Tue 07 Sep 2010 10:27:54 AM UTC, comment #1: 
Jaroslav Hajek <highegg>
Sun 05 Sep 2010 12:15:12 PM UTC, original submission:  

In octave freshly built from mercurial, I get the following bug:

A = [1 2 3; 4 5 6; 7 8 9];

conv2(A, [1;-1])
ans =

   1   2   3
   3   3   3
   3   3   3
  -7  -8  -9

octave:72> conv2(A, [1;-1], 'valid')
ans =

  -3  -3  -3
  -3  -3  -3

I believe that the latter should be equal to the middle rows of the first result.

Thorsten Meyer <tmeyier>

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2010-09-07 highegg StatusNone Fixed
        Open/ClosedOpen Closed
    2010-09-06 highegg Assigned toNone highegg

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