数据挖掘：Weka代码学习

package wekaLearningClassifier;
import java.io.FileReader;

import weka.core.Instances;
public class InstanceTest
{
    public static Instances getFileInstances(String fileName)throws Exception
    {
        FileReader frData=new FileReader(fileName);
        Instances data=new Instances(frData);
        return data;
    }
    public static void main(String [] args)throws Exception
    {
        Instances member=getFileInstances("E:\\adult (1)/adult.csv.arff");//输入的参数是文件的绝对路径："盘符:\\folder/folder/filename.arff"
        for(int i=0;i<member.numInstances();i++)//循环输出所有逇示例
        {
            System.out.println(i+":"+member.instance(i));
            
        }
        System.out.println("\n"+member.firstInstance());//获取第一个示例
        System.out.println("\n"+member.lastInstance());//获取最后一个示例
        System.out.println("\n"+member.numAttributes());//获取示例的属性个数

    }
}