title: Numpy mean AND variance from single function?
body: <p>Using Numpy/Python, is it possible to return the mean AND variance from a single function call?</p>
  
  <p>I know that I can do them separately, but the mean is required to calculate the sample standard deviation.  So if I use separate functions to get the mean and variance I am adding unnecesary overhead.</p>
  
  <p>I have tried looking at the numpy docs here (<a href="http://docs.scipy.org/doc/numpy/reference/routines.statistics.html">http://docs.scipy.org/doc/numpy/reference/routines.statistics.html</a>), but with no success.</p>