CODEWITHSUNDEEP
arraysmatlabnan
NoamG
NoamG

Reputation: 165

how to compare arrays with NaN?

The function ISEQUAL works fine with numbers and inf, but whenever a NaN appears in the array, it screws everything. I am looking for a simple way to compare two arrays containing NaN's (which for me is good enough to say that NaN==NaN). I was thinking of something like a bitwise comparison, but I don't know how to get to the exact bit representation of Matlab.

Any ideas?

Upvotes: 2

Views: 424

Answers (1)

Jonas
Jonas

Reputation: 74940

If you want to know whether the arrays are equal,

tf = isequaln(A,B);

If you want to know whether the elements are equal (with NaN==NaN), you could do

nanA = isnan(A);
nanB = isnan(B);
tfByElement = A==B | nanA & nanB;

Upvotes: 5

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