MATLAB: How to match matrics

match matrices

Suppose I have two matrices with same size (n x n),
A =
     1     1     1
     1   NaN     1
     1   NaN     1
and
B =
   NaN     2   NaN
     2     2     2
     2     2     2
How could I match these two matrices to get A =
   NaN    1   NaN
     1  NaN     1
     1  NaN     1
and
B =
NaN      2   NaN
  2    NaN     2
  2    NaN     2
Many thanks.

Best Answer

Try this:
A(isnan(B)) = nan
B(isnan(A)) = nan
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