- Add a plot1d method to GM class

- Modify kmean to pick up vq from scipy if available (still needs to
  modify setup.py, though)

- modifiy gmm_em update method (outerproduct -> dot, which is a bit
  faster)
David Cournapeau <david@ar.media.kyoto-u.ac.jp> | 2006-08-29 20:20:35 +0900 (Tue, 29 Aug 2006)

From: cdavid <cdavid@cb17146a-f446-4be1-a4f7-bd7c5bb65646>

git-svn-id: https://scikit-learn.svn.sourceforge.net/svnroot/scikit-learn/trunk@79 22fbfee3-77ab-4535-9bad-27d1bd3bc7d8