title: scipy kmeans iteration meaning?
body: <p>I am using the kmeans2 algorithm from scipy to cluster pixel colors in an image to get the top  average colors in the image.</p>
  
  <p><a href="http://docs.scipy.org/doc/scipy/reference/generated/scipy.cluster.vq.kmeans2.html#scipy.cluster.vq.kmeans2" rel="nofollow">http://docs.scipy.org/doc/scipy/reference/generated/scipy.cluster.vq.kmeans2.html#scipy.cluster.vq.kmeans2</a></p>
  
  <p>I am confused on the meaning for this parameter:</p>
  
  <pre><code>iter : int
  Number of iterations of the k-means algrithm to run. Note that this differs in meaning from the iters parameter to the kmeans function.
  </code></pre>
  
  <p>If I want the kmeans algorithm to run until the clusters don't change, would I set the <code>iter</code> value high?  Is there a way to find a <em>best</em> <code>iter</code> value?</p>