generateCalibrationData: Generate classifier calibration data.
Description
A calibrated classifier is one where the predicted probability of a class closely matches the
rate at which that class occurs, e.g. for data points which are assigned a predicted probability
of class A of .8, approximately 80 percent of such points should belong to class A if the classifier
is well calibrated. This is estimated empirically by grouping data points with similar predicted
probabilities for each class, and plotting the rate of each class within each bin against the
predicted probability bins.Usage
generateCalibrationData(obj, breaks = "Sturges", groups = NULL,
task.id = NULL)
References
Vuk, Miha, and Curk, Tomaz. ROC Curve, Lift Chart, and Calibration Plot. Metodoloski zvezki. Vol. 3. No. 1 (2006): 89-108.