On Wed, Apr 23, 2014 at 12:57 AM, Gael Varoquaux <gael.varoqu...@normalesup.org> wrote: > On Tue, Apr 22, 2014 at 08:11:30PM -0700, Faraz Mirzaei wrote: >> I'm putting together a regression test for a LogisticRegression classifier. >> After fixing random_state, I get identical results on linux. But the same >> random_state leads to a different result in windows. > > This is not entirely surprising. Controlling random_state (ie the seed of > the random number generator) is a weak control of the set of random > numbers drawn that will vary based upon architecture.
In case its relevant: numpy random numbers are supposed to be identical across computers and versions. Unit tests were added for this to numpy a few years ago. Josef > > The question is rather: if you are getting vastly different coef_, you > problem is probably very ill-posed. Are you getting np.dot(X, coef_) that > varies widely or not? If it is not the case, it means that you are > getting variations in the kernel of X, which isn't entirely surprising. > If it is the case, I think you just need more regularization. > > Gaël > > ------------------------------------------------------------------------------ > Start Your Social Network Today - Download eXo Platform > Build your Enterprise Intranet with eXo Platform Software > Java Based Open Source Intranet - Social, Extensible, Cloud Ready > Get Started Now And Turn Your Intranet Into A Collaboration Platform > http://p.sf.net/sfu/ExoPlatform > _______________________________________________ > Scikit-learn-general mailing list > Scikit-learn-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ Scikit-learn-general mailing list Scikit-learn-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
