Given the matrix x, return the matrix y with non zero elements replaced with 1.
Example:
Input x = [ 1 2 0 0 0
0 0 5 0 0
2 7 0 0 0
0 6 9 3 3 ] Output y is [ 1 1 0 0 0
0 0 1 0 0
1 1 0 0 0
0 1 1 1 1 ]
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4 Comments
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1 older comment
eric landiech
on 6 Jun 2014
>> isequal(NaN,NaN)
ans =
0
Therefore, the second test is inappropriate
Jan Orwat
on 6 Jun 2014
isequaln should be used.
Jon
on 6 Jun 2014
The way the problem is written, all nonzero elements, including NaN, should be changed to 1, but the test case doesn't work this way.
Ned Gulley
on 6 Jun 2014
I updated the second test with isequaln so that NaN == NaN is true.
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