title: Two stacked bar charts as sub plots - any references?
body: <p>I am trying to chart two subplots, one under the other, using stacked bar charts. I can generate stacked bar charts and subplots, but am unable to combine the two, one underneath the other. Does anybody know of some code that I can look at that does not use pandas. I have been unable to install pandas, only numpy and matplotlib.</p>
  
  <p>Thanks in advance.</p>