how to search for a cell array for empty string cell array in matlab

To search for empty string cell arrays in Matlab, you can use logical indexing. Logical indexing is a way to select specific elements of an array based on a logical condition. In this case, we want to select all the elements of the cell array that are empty strings.

Here's an example code using logical indexing:

% create a cell array
c = {'apple', '', 'orange', '', 'banana'};

% find empty strings using logical indexing
idx = strcmp(c, '');
empty_cells = c(idx); % select only elements where idx == 1 (i.e. where the element is an empty string)

% display results
disp('Original cell array:')
disp(c)
disp('Empty string cell array:')
disp(empty_cells)
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In this example, we first create a cell array c containing some string elements including empty strings. We then use the strcmp function to compare each element of c with an empty string (''). This comparison gives us a logical array idx where elements that match the condition are set to 1, while all other elements are set to 0. Finally, we use logical indexing to select only the elements of c that correspond to 1 in the idx array, which gives us the empty string cell array empty_cells.

The output of this code would be:

main.m
Original cell array:
    'apple'    ''    'orange'    ''    'banana'
Empty string cell array:
    ''    ''
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Note that if you have multiple empty cells in your cell array, the output empty_cells will have the same number of empty strings as the number of empty cells in your original array.