[R] p-values for classification

2005-07-01 Thread Arne.Muller
Dear All, I'm classifying some data with various methods (binary classification). I'm interpreting the results via a confusion matrix from which I calculate the sensitifity and the fdr. The classifiers are trained on 575 data points and my test set has 50 data points. I'd like to calculate

Re: [R] p-values for classification

2005-07-01 Thread Prof Brian Ripley
Not really an R question. Most classifiers will produce predicted probabilities, and you can check their accuracy. There are lots of details in my PRNN book, and some examples in MASS4. I suggest you adjust your training and test sets to be more nearly equal, or use cross-validation. I