ArffLoader loader = new ArffLoader(); loader.setFile(new File("some.arff")); Instances data= loader.getStructure(); // you missed this sampler.setInputFormat(data);
ArffLoader testingData = new ArffLoader(); testingData.setFile(new File("sample2.txt")); Instances testingStructure = testingData.getStructure(); testingStructure.setClassIndex(structure.numAttributes() - 1); Instance test; while ((test = testingData.getNextInstance(testingStructure)) != null) { System.out.println(nb.classifyInstance(test)); }
data = ((weka.core.converters.ArffLoader) source).getStructure(); capabilities.setMinimumNumberInstances(0); arffLoader = true;
ArffLoader loader = new ArffLoader(); loader.setFile(new File(""));//file is valid Instances structure = loader.getStructure(); structure.setClassIndex(0); // train NaiveBayes NaiveBayesMultinomialUpdateable n = new NaiveBayesMultinomialUpdateable(); FilteredClassifier f = new FilteredClassifier(); StringToWordVector s = new StringToWordVector(); f.setFilter(s); f.setClassifier(n); f.buildClassifier(structure); Instance current; while ((current = loader.getNextInstance(structure)) != null) n.updateClassifier(current); // output generated model System.out.println(n);
data = (Instances) dataSource; } else if (dataSource instanceof weka.core.converters.ArffLoader) { data = ((weka.core.converters.ArffLoader) dataSource).getStructure();
data = ((weka.core.converters.ArffLoader) source).getStructure(); capabilities.setMinimumNumberInstances(0); arffLoader = true;
data = (Instances) dataSource; } else if (dataSource instanceof weka.core.converters.ArffLoader) { data = ((weka.core.converters.ArffLoader) dataSource).getStructure();
data = (Instances) source; } else if (source instanceof weka.core.converters.ArffLoader) { data = ((weka.core.converters.ArffLoader) source).getStructure();
data = (Instances) source; } else if (source instanceof weka.core.converters.ArffLoader) { data = ((weka.core.converters.ArffLoader) source).getStructure();
Instances structure = loader.getStructure(); saver.setRetrieval(Saver.INCREMENTAL); saver.setInstances(structure);
ArffLoader loader = new ArffLoader(); loader.setFile(tmpFile); Instances tempStructure = loader.getStructure(); Instance tempLoaded = loader.getNextInstance(tempStructure); while (tempLoaded != null) {
ArffLoader loader = new ArffLoader(); loader.setFile(tmpFile); Instances tempStructure = loader.getStructure(); Instance tempLoaded = loader.getNextInstance(tempStructure); while (tempLoaded != null) {