[R] pROC and ROCR give different values for AUC

2012-12-19 Thread Ivana Cace
Packages pROC and ROCR both calculate/approximate the Area Under (Receiver Operator) Curve. However the results are different. I am computing a new variable as a predictor for a label. The new variable is a (non-linear) function of a set of input values, and I'm checking how different

Re: [R] pROC and ROCR give different values for AUC

2012-12-19 Thread Max Kuhn
A reproducible example sent to the package maintainer(s) might yield results. Max On Wed, Dec 19, 2012 at 7:47 AM, Ivana Cace i.c...@ati-a.nl wrote: Packages pROC and ROCR both calculate/approximate the Area Under (Receiver Operator) Curve. However the results are different. I am computing

Re: [R] pROC and ROCR give different values for AUC

2012-12-19 Thread David Winsemius
On Dec 19, 2012, at 4:47 AM, Ivana Cace wrote: Packages pROC and ROCR both calculate/approximate the Area Under (Receiver Operator) Curve. However the results are different. I am computing a new variable as a predictor for a label. The new variable is a (non-linear) function of a set of

Re: [R] pROC and ROCR give different values for AUC

2012-12-19 Thread Ivana Cace
I considered that but on the list more people are likely to see it. So if they ran into the same thing they may already have figured out what is going on and have answers. Or if not, I'll make a reproducible example, ask the maintainers and post back here where others may find it. (but not

Re: [R] pROC and ROCR give different values for AUC

2012-12-19 Thread Steve Lianoglou
On Wed, Dec 19, 2012 at 12:36 PM, Ivana Cace i.c...@ati-a.nl wrote: I considered that but on the list more people are likely to see it. So if they ran into the same thing they may already have figured out what is going on and have answers. Or if not, I'll make a reproducible example, ask the

Re: [R] pROC and ROCR give different values for AUC

2012-12-19 Thread Thomas Lumley
On Thu, Dec 20, 2012 at 6:36 AM, Ivana Cace i.c...@ati-a.nl wrote: I considered that but on the list more people are likely to see it. So if they ran into the same thing they may already have figured out what is going on and have answers. Or if not, I'll make a reproducible example, ask the