title: How to set the y-axis limit
body: <p>I need help with setting the limits of y-axis on matplotlib. Here is the code that I tried, unsuccessfully.</p>
  
  <pre><code>import matplotlib.pyplot as plt
  
  plt.figure(1, figsize = (8.5,11))
  plt.suptitle('plot title')
  ax = []
  aPlot = plt.subplot(321, axisbg = 'w', title = "Year 1")
  ax.append(aPlot)
  plt.plot(paramValues,plotDataPrice[0], color = '#340B8C', 
       marker = 'o', ms = 5, mfc = '#EB1717')
  plt.xticks(paramValues)
  plt.ylabel('Average Price')
  plt.xlabel('Mark-up')
  plt.grid(True)
  plt.ylim((25,250))
  </code></pre>
  
  <p>With the data I have for this plot, I get y-axis limits of 20 and 200. However, I want the limits 20 and 250.</p>