Sklearn NMF

[KeithTheEE]

Running the NMF dimensional reduction yields these warnings

/home/lib/python2.7/site-packages/sklearn/utils/__init__.py:75: DeprecationWarning: Class ProjectedGradientNMF is deprecated; It will be removed in release 0.19. Use NMF instead.'pg' solver is still available until release 0.19.
  warnings.warn(msg, category=DeprecationWarning)
/home/lib/python2.7/site-packages/sklearn/decomposition/nmf.py:775: DeprecationWarning: 'pg' solver will be removed in release 0.19. Use 'cd' solver instead.
  " Use 'cd' solver instead.", DeprecationWarning)

Update program to use NMF instead of ProjectedGradientNMF, and cd instead of pg before release 0.19
As a result of sklearn update, perhaps an assert should be added to ensure python v2.7+ is being used