Options: -C 0.25 -M 2 === Classifier model (full training set) === J48 pruned tree ------------------ 220156_at <= 7.999417 | 1562309_s_at <= 8.800626 | | 1553570_x_at <= 14.525736 | | | 224753_at <= 7.581926: pilocytic_astrocytoma (15.0) | | | 224753_at > 7.581926: glioblastoma (35.0/1.0) | | 1553570_x_at > 14.525736: normal (13.0) | 1562309_s_at > 8.800626: medulloblastoma (22.0) 220156_at > 7.999417: ependymoma (45.0) Number of Leaves : 5 Size of the tree : 9 Time taken to build model: 2.9 seconds Time taken to test model on training data: 1.64 seconds === Error on training data === Correctly Classified Instances 129 99.2308 % Incorrectly Classified Instances 1 0.7692 % Kappa statistic 0.9898 Mean absolute error 0.006 Root mean squared error 0.0547 Relative absolute error 1.9765 % Root relative squared error 14.074 % Total Number of Instances 130 === Detailed Accuracy By Class === TP Rate FP Rate Precision Recall F-Measure MCC ROC Area PRC Area Class 0,978 0,000 1,000 0,978 0,989 0,983 0,996 0,991 ependymoma 1,000 0,010 0,971 1,000 0,986 0,980 0,995 0,971 glioblastoma 1,000 0,000 1,000 1,000 1,000 1,000 1,000 1,000 medulloblastoma 1,000 0,000 1,000 1,000 1,000 1,000 1,000 1,000 normal 1,000 0,000 1,000 1,000 1,000 1,000 1,000 1,000 pilocytic_astrocytoma Weighted Avg. 0,992 0,003 0,993 0,992 0,992 0,989 0,997 0,989 === Confusion Matrix === a b c d e <-- classified as 45 1 0 0 0 | a = ependymoma 0 34 0 0 0 | b = glioblastoma 0 0 22 0 0 | c = medulloblastoma 0 0 0 13 0 | d = normal 0 0 0 0 15 | e = pilocytic_astrocytoma Time taken to perform cross-validation: 6.49 seconds === Stratified cross-validation === Correctly Classified Instances 110 84.6154 % Incorrectly Classified Instances 20 15.3846 % Kappa statistic 0.7957 Mean absolute error 0.0637 Root mean squared error 0.246 Relative absolute error 21.0381 % Root relative squared error 63.299 % Total Number of Instances 130 === Detailed Accuracy By Class === TP Rate FP Rate Precision Recall F-Measure MCC ROC Area PRC Area Class 0,913 0,083 0,857 0,913 0,884 0,819 0,927 0,863 ependymoma 0,765 0,052 0,839 0,765 0,800 0,735 0,856 0,703 glioblastoma 0,864 0,019 0,905 0,864 0,884 0,861 0,923 0,804 medulloblastoma 0,923 0,034 0,750 0,923 0,828 0,812 0,944 0,700 normal 0,733 0,017 0,846 0,733 0,786 0,762 0,909 0,764 pilocytic_astrocytoma Weighted Avg. 0,846 0,052 0,848 0,846 0,845 0,797 0,907 0,783 === Confusion Matrix === a b c d e <-- classified as 42 2 1 1 0 | a = ependymoma 3 26 1 2 2 | b = glioblastoma 0 3 19 0 0 | c = medulloblastoma 1 0 0 12 0 | d = normal 3 0 0 1 11 | e = pilocytic_astrocytoma