title: How to give titles to the different colours of Matlab graphs
body: <p>This part of code, will create three different graphs in one frame, and they will all three have different colours. But I don't know which colour corresponds to which <code>i</code>.</p>
  
  <pre><code>figure('Name','function','NumberTitle','on')
  hold all
  
  for i = 1:N 
      plot(input_firingRate(i,:),output_firingRate(i,:))
      ax = gca;
      ax.XAxisLocation = 'origin';
      ax.YAxisLocation = 'origin';       
  end
  </code></pre>
  
  <p>Is there any way to have within the frame a title-like way to distinct between different results and colours? For example: </p>
  
  <pre><code>Test i = 1 : 'r'
  Test i = 2 : 'g'
  Test i = 3 : 'b'
  </code></pre>