scikit-learn/scikit-learn — pull request #2702 by glouppe (2014-01-01 16:56:38+00:00)
Title: [MRG] Fix #2697 - Copy parameter in Imputer

This PR fixes #2697. It ensures that the same buffers are used when `copy=False` and that data is indeed not dupplicated. The corresponding test has been rewritten to check for all cases.

Ping @jnothman