[R] Fw: ROC

[carol white]

if nobody knows the answer to my question on time-dependent ROC (see below), does any body know how TP and FP are related to classes and samples (orders) in non-time dependent ROC? Any reference?

Thanks

--- On Tue, 11/3/09, carol white <wht_crl at yahoo.com> wrote:

> From: carol white <wht_crl at yahoo.com>
> Subject: ROC
> To: r-help at stat.math.ethz.ch
> Date: Tuesday, November 3, 2009, 1:08 PM
> My question would be related more to
> time-dependent ROC (survivalROC package):
> 
> I would like to know how true positives (TP) and false
> positives (FP) are related to the order of survival times
> and diagnostic markers. That is, having the a set of TP and
> FP, each of them is calculated from which diagnostic marker
> and survival times. Let's take mayo data set. How could I
> match the TP and FP generated from survivalROC function to
> cut.values (output) and Stimes (input)?
> 
> Best,
> 
> Carol
> 
> 
> 
>       
>