Options: -K 1 -W 0 -A "weka.core.neighboursearch.LinearNNSearch -A "weka.core.EuclideanDistance -R first-last"" === Classifier model (full training set) === IB1 instance-based classifier using 1 nearest neighbour(s) for classification Time taken to build model: 2.18 seconds Time taken to test model on training data: 6.56 seconds === Error on training data === Correctly Classified Instances 130 100 % Incorrectly Classified Instances 0 0 % Kappa statistic 1 Mean absolute error 0.0119 Root mean squared error 0.0148 Relative absolute error 3.9186 % Root relative squared error 3.8137 % Total Number of Instances 130 === Detailed Accuracy By Class === TP Rate FP Rate Precision Recall F-Measure MCC ROC Area PRC Area Class 1,000 0,000 1,000 1,000 1,000 1,000 1,000 1,000 ependymoma 1,000 0,000 1,000 1,000 1,000 1,000 1,000 1,000 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. 1,000 0,000 1,000 1,000 1,000 1,000 1,000 1,000 === Confusion Matrix === a b c d e <-- classified as 46 0 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: 6.91 seconds === Stratified cross-validation === Correctly Classified Instances 113 86.9231 % Incorrectly Classified Instances 17 13.0769 % Kappa statistic 0.8274 Mean absolute error 0.0669 Root mean squared error 0.2235 Relative absolute error 22.0942 % Root relative squared error 57.5003 % 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 0,071 0,882 0,978 0,928 0,888 0,944 0,854 ependymoma 0,676 0,010 0,958 0,676 0,793 0,754 0,821 0,738 glioblastoma 0,909 0,000 1,000 0,909 0,952 0,945 0,939 0,924 medulloblastoma 1,000 0,009 0,929 1,000 0,963 0,959 0,994 0,904 normal 0,800 0,078 0,571 0,800 0,667 0,627 0,860 0,487 pilocytic_astrocytoma Weighted Avg. 0,869 0,038 0,891 0,869 0,870 0,840 0,906 0,799 === Confusion Matrix === a b c d e <-- classified as 45 0 0 0 1 | a = ependymoma 3 23 0 1 7 | b = glioblastoma 1 0 20 0 1 | c = medulloblastoma 0 0 0 13 0 | d = normal 2 1 0 0 12 | e = pilocytic_astrocytoma