/* Data Analysis with Java * John R. Hubbard * May 27, 2017 */ package dawj.ch07; import weka.core.Instance; import weka.core.Instances; import weka.core.converters.ConverterUtils.DataSource; public class TestDataSource { public static void main(String[] args) throws Exception { DataSource source = new DataSource("data/fruit.arff"); Instances instances = source.getDataSet(); instances.setClassIndex(instances.numAttributes() - 1); System.out.println(instances.attribute(2)); Instance instance = instances.get(3); System.out.println(instance); System.out.println(instance.stringValue(0)); System.out.println(instance.stringValue(2)); } }