is it adjusted R^2? The usual R^2 can never be negative afaik
http://en.wikipedia.org/wiki/Coefficient_of_determination
On Wed, Jan 23, 2013 at 2:42 PM, Andreas Mueller
<amuel...@ais.uni-bonn.de>wrote:
> Am 23.01.2013 20:32, schrieb Ronnie Ghose:
> > How can _best_score in GridSearchCV be negative? R^2 can only be from
> > 0 to -1 ...?
> R^2 can also be negative afaik. It is somewhat unstable for small sample
> sizes.
>
>
> ------------------------------------------------------------------------------
> Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS,
> MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current
> with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft
> MVPs and experts. ON SALE this month only -- learn more at:
> http://p.sf.net/sfu/learnnow-d2d
> _______________________________________________
> Scikit-learn-general mailing list
> Scikit-learn-general@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
>
------------------------------------------------------------------------------
Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS,
MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current
with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft
MVPs and experts. ON SALE this month only -- learn more at:
http://p.sf.net/sfu/learnnow-d2d
_______________________________________________
Scikit-learn-general mailing list
Scikit-learn-general@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
