Thanks. I will surely try this as well.
Monica
> Date: Thu, 26 Feb 2009 08:14:31 -0500
> Subject: Re: [R] statistical significance of accuracy increase in
> classification
> From: mxk...@gmail.com
> To: pisican...@hotmail.com
> CC: r-help@r-project.org
>
> > Do you know about any good reference that discusses kappa for
> > classification and maybe CI for kappa???
>
> I don't, but googling on kappa and confusion matrix etc should get you
> there. Kappa works very well when the true classes are skewed. For
> example, if 10% of you samples are class A and 90% class B, you can
> optimize accuracy by calling everything B.
>
> Max
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