scikit-learn/scikit-learn — pull request #984 by jakevdp (2012-07-26 15:46:36+00:00)
Title: MRG: Update ARPACK Backport

This updates scikit-learn's `arpack` backport with bug fixes from scipy v0.11, and adds a copy of scipy's arpack test suite to scikit-learn.

For reference, the main bugs fixed in this new version are reported here:
http://projects.scipy.org/scipy/ticket/1515

Note that in scipy 0.10 there were some minor updates to the ARPACK fortran source bundled with scipy, so a few rare cases will fail under older scipy versions. Short of bundling ARPACK with scikit-learn, I don't think we have any means of addressing this.