MATLAB: Using fprintf with matrices with rational entries

formatfprintfrats

I'm currently using the following code to write the entries of matrix X onto a .txt file:
fprintf(fileID,['%12.6f %12.6f \r\n'],X);
As is, the .txt file stores the entries as decimals. I'm looking for a way to store the entries as fractions instead of decimals. I've been trying to use the rats function for the matrix X but haven't found a solution.
For example, X = [1.250000 0.333333; 0 0.142857]. I want to store this as
5/4    1/3
0      1/7
in my .txt file. Would appreciate help.
Thanks in advance!

Best Answer

Have to switch to string representation to do so or use the related rat function instead...
[n d]=rat(x);
for i=1:size(x,1)
  for j=1:size(x,2)
    if d(i,j)==1
      fprintf('%5d',n(i,j))
    else
      fprintf('%5d/%5d',n(i,j), d(i,j))
    end
  end
  fprintf('\n')
end
For rats
ra=arrayfun(@rats,x,'uniformoutput',0);
for i=1:size(x,1)
  for j=1:size(x,2)
    fprintf('%8s',char(strtrim(ra(i,j))))
  end
fprintf('\n')
end
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