Re: [Scikit-learn-general] Classification if only one class is present

2012-08-10 Thread David Warde-Farley
I agree with you, Andy. It seems the right thing to do to address Olivier & Gilles' subsampling concern is to fix the subsampling, not allow the ensemble to add useless classifiers/do useless cross-validation folds. On Fri, Aug 10, 2012 at 7:48 AM, Andreas Mueller wrote: > No-one has any opinion

Re: [Scikit-learn-general] Classification if only one class is present

2012-08-10 Thread Andreas Mueller
No-one has any opinion on that? On 08/05/2012 10:01 PM, Andreas Mueller wrote: Hey everybody. Recently I opened and issue suggesting that all classifiers should raise an error if there is only one class present during training. My rea

[Scikit-learn-general] Classification if only one class is present

2012-08-05 Thread Andreas Mueller
Hey everybody. Recently I opened and issue suggesting that all classifiers should raise an error if there is only one class present during training. My reasoning was that there is no point in training a classifier, as they usually won't