Re: [R] auc function

2011-01-21 Thread Petr Savicky
On Thu, Jan 20, 2011 at 03:14:01PM -0800, Changbin Du wrote: > ROCR > I appreciate this information, which is new for me. Up to now, i was using the function get.auc <- function(statistic, label, negative, positive) { xmove <- as.numeric(label == negative) ymove <- as.numeric(lab

Re: [R] auc function

2011-01-20 Thread Changbin Du
ROCR On Thu, Jan 20, 2011 at 3:04 PM, He, Yulei wrote: > Hi, there. > > Suppose I already have sensitivities and specificities. What is the quick > R-function to calculate AUC for the ROC plot? There seem to be many R > functions to calculate AUC. > > Thanks. > > Yulei > > >[[alternati