title: How can i plot 2 string variables Pol vs Ch
body: <p>I want to plot Ch and Pol strings but i can't convert them into a plotable variables</p>
  
  <pre><code>Ch = '1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22'
  Pol = '9 9 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10'
  plt.plot(Ch,Pol)
  </code></pre>
  
  <p>When i run it the result is:</p>
  
  <blockquote>
    <p>ValueError: Unrecognized character 9 in format string</p>
  </blockquote>
  
  <p>Please help</p>