scikit-learn/scikit-learn — pull request #921 by fhoeni (2012-06-28 11:54:02+00:00)
Title: Scaler bugfix

Here's a new test that fails with the current version:
Scaler(with_mean=False, copy=False).fit(X) changes X if it is sparse - which shouldn't be happening.

The second commit removes the guilty line.

Please review.