Re: [Scikit-learn-general] CoefSelectTransformerMixin

2012-01-25 Thread Andreas
On 01/25/2012 10:09 AM, Mathieu Blondel wrote: > On Wed, Jan 25, 2012 at 3:03 PM, Mathieu Blondel wrote: > > >> I will do it later today. >> > Done in > https://github.com/scikit-learn/scikit-learn/commit/77d83b61f9161899de286ca09601aa648e9c31ff. > Thanks! Will try it later :) Andy

Re: [Scikit-learn-general] CoefSelectTransformerMixin

2012-01-25 Thread Mathieu Blondel
On Wed, Jan 25, 2012 at 3:03 PM, Mathieu Blondel wrote: > I will do it later today. Done in https://github.com/scikit-learn/scikit-learn/commit/77d83b61f9161899de286ca09601aa648e9c31ff. Mathieu -- Keep Your Developer

Re: [Scikit-learn-general] CoefSelectTransformerMixin

2012-01-24 Thread Mathieu Blondel
CoefSelectTransformerMixin must be deprecated or deleted (I would favor the latter as I guess nobody uses it in user-land code) and replaced in favor of SelectorMixin. I will do it later today. https://github.com/scikit-learn/scikit-learn/issues/518 Mathieu --

Re: [Scikit-learn-general] CoefSelectTransformerMixin

2012-01-24 Thread Gael Varoquaux
On Tue, Jan 24, 2012 at 11:07:20PM +0100, Andreas wrote: > Taking the mean means that if a feature has a strong positive weight for one > class and a strong negative weight for another class, they might cancel, > leading to the feature being not present in the solution. > Why does that make sense?

[Scikit-learn-general] CoefSelectTransformerMixin

2012-01-24 Thread Andreas
Hi everybody. At the moment I'm trying to understand feature selection. I was looking at the "L1 based feature selection" that is described in the docs. I was trying to use that with LinearSVC but I don't really understand what is going on. Maybe someone can explain. I am in the mult-class setu