MATLAB: How to remove the zeros in the cells of a matrix

matrix without zeros

Say I have matrix like this
>> part
part =
      16     0     0
       1    29     0
       2    25     0
       3    32     0
       4    30     0
       5    26     0
       6    28     0
       7    27     0
       8    22    31
       9    18     0
      10    21     0
      11    24     0
      12    19     0
      13    23     0
      14    17     0
      15    20     0
      16     0     0
and I would like to write this matrix to a csv file without the zeros

Best Answer

output_lines = regexprep(cellstr(num2str(part,',%d')), {',\s*0', '\s+', '^,'}, {',', '', ''})
fid = fopen('YourOutputFile.csv', 'wt');
fprintf(fid, '%s\n', output_lines{:});
fclose(fid);
You can change the %d to %g to include floating point numbers. However, if you change the %d to %f then the code would need to be changed.
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