scikit-learn/scikit-learn — pull request #972 by pprett (2012-07-21 14:22:11+00:00)
Title: Tree uses float64 for labels

This PR changes the ``dtype`` of ``y`` in the ``tree`` and ``ensemble`` module.

Memory consumption of ``y`` should not be an issue; numerical stability of ``gradient_boosting`` is enhanced.

Now ``float64`` is used consistently in sklearn's regressors (cd_fast, sgd, liblinear, libsvm).