title: Rainflow counting algorithm
body: <p>I've been asked to use a <a href="http://en.wikipedia.org/wiki/Rainflow-counting_algorithm">rainflow counting algorithm</a> for a project I'm working on.  Does anyone have any experience of libraries that I could use for this task.  I'm already calculating a number of other statistics using Python and Numpy, so any suggestions using / extending these tools would be ideal.</p>
  
  <p>Thanks.</p>