title: Best way to combine probabilistic classifiers in scikit-learn
body: <p>I have a logistic regression and a random forest and I'd like to combine them (ensemble) for the final classification probability calculation by taking an average.</p>
  
  <p>Is there a built-in way to do this in sci-kit learn?  Some way where I can use the ensemble of the two as a classifier itself?  Or would I need to roll my own classifier?</p>