[Octave-bug-tracker] [bug #58151] find(1:3, list) returns indices greater than length(list)

[Rik]

Update of bug #58151 (project octave):

                  Status:                    None => Invalid                
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #1:

This is expected, and the same behavior as Matlab.  The crux of the issue is
that you are performing an operation between a row vector and column vector
and so "broadcasting" applies and Octave/Matlab fill in the values to create a
matrix.

For example


octave:1> x = 1:3
x =

   1   2   3

octave:2> y = x'
y =

   1
   2
   3

octave:3> z = x + y
z =

   2   3   4
   3   4   5
   4   5   6



In this case, 2:4 becomes the row vector [2, 3, 4], and you are using the '=='
operator between in and a column vector of length 5556 which should create a
matrix of size 5556 x 3.  You could always check with


tst = (2:4 == day);
size (tst)





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