benchmark.
The structure of the object itself is rather complicated, it is recommended to
retrive required information via the getBMR* getter functions.
You can also convert the object using as.data.frame.benchmark;
getBMRAggrPerformances;
getBMRFeatSelResults;
getBMRFilteredFeatures;
getBMRLearnerIds;
getBMRPerformances;
getBMRPredictions;
getBMRTaskIds;
getBMRTuneResults