
Hi Ritesh,

may be i can help, but yeah i will try  ? you can reach help to ROCR 
package by 
help.search("ROCR")

What is the structure of your data ? can you give some sample i.e. few 
lines of your dataset ?

"To build ROC curve using only PSA(variable) alone of the original cohort
against the ROC of the Model of the original cohort."
what do you intend to do, please clarify more ? it sounds like you have 
been given tutorial, or you are working this for corporate ?

:) cheers





"Rithesh M. Mohan" <rithesh.m@brickworkindia.com> 
Sent by: r-help-bounces@stat.math.ethz.ch
07/30/2007 01:06 PM

To
<r-help@stat.math.ethz.ch>
cc

Subject
[R] help with ROC curve






Hi 

 

I'm new to stats and R, so can you please help me or guide me building
ROC curve in an elaborate way with codes

I loaded ROCR package, but I'm not sure how to use it. 

 

Requirement

To build ROC curve using only PSA(variable) alone of the original cohort
against the ROC of the Model of the original cohort.

 

It would be really great if you could help me with this. 

 

Thanks 

Rithesh M Mohan

 


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