scikit-learn/scikit-learn — pull request #707 by amueller (2012-03-18 16:15:29+00:00)
Title: MRG Graphviz dot refactoring

This PR tries to simplify the `.dot` export in the tree module.

My refactoring is shorter and produces shorter `.dot` files (internal nodes are not duplicated any more).

Also I feel it is easier to understand.