scikit-learn/scikit-learn — pull request #2290 by dengemann (2013-07-28 11:44:21+00:00)
Title: ENH/FIX: improve logcosh function + tests

This PR inclides the additions and edits from #2248 that were independent from the `fast_dot`. Besides STY/DOC/COSMITS the `_logcosh` function's memory footprint was improved via chunking and and tests got fixed.

cc @agramfort @ogrisel