code: public <T extends ROCMultiClass> T evaluateROCMultiClass(JavaRDD<DataSet> data) {
          return evaluateROCMultiClass(data, DEFAULT_ROC_THRESHOLD_STEPS, DEFAULT_EVAL_SCORE_BATCH_SIZE);
      }
docs: Perform ROC analysis/evaluation (for the multi-class case, using {@link ROCMultiClass} on the given DataSet in a distributed manner
  
  @param data                    Test set data (to evaluate on)
  @return ROC for the entire data set