MATLAB: Can I convert empty strings to NaNs automatically in a cell array

excellinkMATLABmlputmatrixnan

In MATLAB, I have a cell array containing nonempty strings, numbers, and empty strings. I want to change the empty strings to NaNs using a MATLAB function.

Best Answer

The CELLFUN command provides this functionality:
% Return a boolean array named 'empties' (with same dimensions as cell array
% 'A') with true for each empty element and false otherwise
empties = cellfun('isempty',A);
% Now change all the empty cells in A from empty strings '' to double NaN
A(empties) = {NaN};
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