title: R function Mclust slow
body: <p>I used the Mclust function in the mclust package for EM-Clustering of a vector of about 27,000 entries into two clusters:</p>
  
  <pre><code>Mclust(data_vector, G=2)
  </code></pre>
  
  <p>Another software that uses opencv for the EM-Clustering is about 3 times faster than Mclust (even if I reduce the maximum number of iterations in Mclust to e.g. 4). In the mclust source it looks like the function is implemented in fortran. </p>
  
  <p>How can it be that it seems to be slower than the opencv implementation?</p>