MATLAB: Replacing NaNs with zero in a matrix within a cell array.

cell arraysreplacing nans

How to replace NaNs with 0 in a cell array that has the following anatomy 13×1 cell, Each cell is of size 63×63[double]. the cell name is 'a'.

Any help would be appreciated, Thank you in advance.

Best Answer

a = cellfun(@(M) subsasgn(M, substruct('()', {isnan(M)}), 0), a, 'uniform', 0);

No loop needed... just ugly code.

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MATLAB: I have 28*6 cell as seen in the picture. Except for the first column, I need all the other columns to have equal lengths by filling them up with zeros in the end. Thanks in advance.

% ca is your cellarray
ii = cellfun(@isnumeric, ca);
m = max(cellfun(@numel, ca(ii)));
ca(ii) = cellfun(@(x)[x;zeros(m-numel(x),1)], ca(ii), 'UniformOutput', 0);

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

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};

Best Answer

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MATLAB: I have 28*6 cell as seen in the picture. Except for the first column, I need all the other columns to have equal lengths by filling them up with zeros in the end. Thanks in advance.

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

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