title: problem plotting on logscale in matplotlib in python
body: <p>I am trying to plot the following numbers on a log scale as a scatter plot in matplotlib.  Both the quantities on the x and y axes have very different scales, and one of the variables has a huge dynamic range (nearly 0 to 12 million roughly) while the other is between nearly 0 and 2.  I think it might be good to plot both on a log scale.</p>
  
  <p>I tried the following, for a subset of the values of the two variables:</p>
  
  <pre><code>fig = plt.figure(figsize=(8, 8))
  ax = fig.add_subplot(1, 1, 1)
  ax.set_yscale('log')
  ax.set_xscale('log')
  plt.scatter([1.341, 0.1034, 0.6076, 1.4278, 0.0374],
          [0.37, 0.12, 0.22, 0.4, 0.08])
  </code></pre>
  
  <p>The x-axes appear log scaled but the points do not appear -- only two points appear.  Any idea how to fix this?  Also, how can I make this log scale appear on a square axes, so that the correlation between the two variables can be interpreted from the scatter plot?</p>
  
  <p>thanks.</p>