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mlr (version 2.7)

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)

Arguments

References

Vuk, Miha, and Curk, Tomaz. ROC Curve, Lift Chart, and Calibration Plot. Metodoloski zvezki. Vol. 3. No. 1 (2006): 89-108.

See Also

Other calibration: plotCalibration

Other generate_plot_data: generateCritDifferencesData, generateFilterValuesData, generateLearningCurveData, generatePartialPredictionData, generateROCRCurvesData, generateThreshVsPerfData, getFilterValues