[Octave-bug-tracker] [bug #55141] sparse matrix/vector comparison

[Ray Zimmerman]

URL:
  <https://savannah.gnu.org/bugs/?55141>

                 Summary: sparse matrix/vector comparison
                 Project: GNU Octave
            Submitted by: rdzman
            Submitted on: Fri 30 Nov 2018 08:49:46 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: rdzman
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.1
        Operating System: Any

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Details:

Comparing a matrix with a vector works fine for full and sparse matrices on
Matlab, but on Octave it gives an error for sparse matrices.


octave:1> A = [1 3; 7 5]; b = [2; 6];
octave:2> A < b
ans =

  1  0
  0  1

octave:3> sparse(A) < sparse(b)
error: mx_el_lt: nonconformant arguments (op1 is 2x2, op2 is 2x1)


On Matlab, however, it works fine ...


>> A = [1 3; 7 5]; b = [2; 6];
>> A < b

ans =

  2x2 logical array

   1   0
   0   1

>> sparse(A) < sparse(b)

ans =

  2x2 sparse logical array

   (1,1)      1
   (2,2)      1






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