MATLAB: Remove rows or cols whose elements are all NaN

colsnanrows

How can I remove rows or cols whose elements are all NaN ? Withouot any dirty iterations?
For example,
A = [1 1 1 1 1 1 1 1 1 1;
     NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN;
     1 1 1 1 1 1 1 1 1 1;
     NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN;];
should turned into
A = [1 1 1 1 1 1 1 1 1 1;
     1 1 1 1 1 1 1 1 1 1];
This is just an example. Actually I have a very big matrix. So I want a solution of this question to work well with my big matrix.

Best Answer

out = A(all(~isnan(A),2),:); % for nan - rows
out = A(:,all(~isnan(A)));   % for nan - columns
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