We provide tools to estimate two prediction accuracy metrics, the average positive predictive values (AP) as well as the wellknown AUC (the area under the receiver operator characteristic curve) for risk scores. The outcome of interest is either binary or censored event time. Note that for censored event time, our functions' estimates, the AP and the AUC, are timedependent for prespecified time interval(s). A function that compares the APs of two risk scores/markers is also included. Optional outputs include positive predictive values and true positive fractions at the specified marker cutoff values, and a plot of the timedependent AP versus time (available for event time data).
Package details 


Author  Hengrui Cai <hengruicai@gmail.com>, Yan Yuan <yyuan@ualberta.ca>, Qian Michelle Zhou <qz70@msstate.edu>, Bingying Li<dorisli1120@gmail.com> 
Maintainer  Hengrui Cai <hengruicai@gmail.com> 
License  LGPL3 
Version  6.8.8 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.