title: Several graphs in 1 loop, each iteration adds a line on every figure
body: <p>Trying to engineer the following in Matlab:</p>
  
  <pre><code>** loop start;
     y(:,i) = function of x;
     z(:,i) = function of x;
     plot(x,y(:,i))   on figure 1, hold all;
     plot(x,z(:,i))   on figure 2, hold all;
  ** loop end;
     add title, legend, etc for figure 1 (NB: we have multiple lines);
     add title, legend, ets for figure 2 (NB: same, have multiple lines for the legend);`
  </code></pre>
  
  <p>Tried multiple combinations without much luck. Managed to get 2 figures but only the 2-nd displays multiple lines, not the first. And can't figure how to add legends to these 2 correctly.</p>