[Octave-bug-tracker] [bug #47951] find complex number array elements with condition

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?47951>

                 Summary: find complex number array elements with condition
                 Project: GNU Octave
            Submitted by: None
            Submitted on: 2016년 05월 18일 (수) 오전 03시 03분 30초
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.2
        Operating System: GNU/Linux

    _______________________________________________________

Details:

Hi,

Finding elements with a condition from an array with complex numbers works
differently between matlab and octave.

Here's an example


$ cat a.m
arr = [1, 2+1i, 3, 0, -1, -2]
arr(find(arr>0))

$ octave-cli a.m 
arr =

   1 + 0i   2 + 1i   3 + 0i   0 + 0i  -1 + 0i  -2 + 0i

ans =

   1 + 0i   2 + 1i   3 + 0i  -1 + 0i  -2 + 0i


Octave returns all elements but 0.

However, matlab doesn't include last two items in the result. It only returns
1, 2+1i, 3.

The following code returns same result in both


arr = [1, 2+1i, 3, 0, -1, -2]
arr(find(real(arr)>0))


Regards,
Louis




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?47951>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/