title: How to to use python Gnuplot to plot a bar graph?
body: <p>I want to use python Gnuplot to plot a bar graph; however, I didn't find the specific manual or instruction to do that, and thanks for any suggestions.</p>
  
  <p>I was doing:</p>
  
  <pre><code>graph = Gnuplot.Gnuplot(debug=1)
  graph.plot(Gnuplot.Data(exp_data[0],exp_data[1],title='exp')
  </code></pre>