[R] Logistic Regression - Interpreting SENS (Sensitivity) and SPEC (Specificity)

[Dieter Menne]

Peter Dalgaard <p.dalgaard <at> biostat.ku.dk> writes:

> 
> But if he has a "hold out sample", isn't he already cross-validating?? 
>   I wonder if you're answering the right question there. Could he just 
> be looking for Sp=Gg/(Gg+Bg), Se=Bb/(Gb+Bb)? (If I got the notation 
> right.)

You are right. My brain was biased by some ongoing discussion. 

Dieter