如何在java代碼中加載.csv文件以使用weka進行測試？

Question

我從weka分類獲得的模型，我想測試它在Java代碼中，但是當我讀到的情況下，一個錯誤出現：

Exception in thread "main" java.io.IOException: keyword @relation expected, read Token[Word], line 1 
at weka.core.Instances.errms(Instances.java:1863) 
at weka.core.Instances.readHeader(Instances.java:1740) 
at weka.core.Instances.<init>(Instances.java:119) 
at licenta1.LoadModelWeka.main(LoadModelWeka.java:18) 

我的代碼是：

package licenta1; 

import weka.core.Instances; 
import weka.classifiers.bayes.NaiveBayes; 
import weka.classifiers.trees.J48; 
import weka.classifiers.Evaluation; 

import java.util.Random; 
import java.io.BufferedReader; 
import java.io.FileReader ; 

public class LoadModelWeka 
{ 
    public static void main(String[] args) throws Exception { 
    // training 
     BufferedReader reader = null; 
     reader=new BufferedReader(new FileReader("D:\\aaaaaaaaaaaaaaaaaaaaaa\\Licenta\\BioArtLicTrainSetTask1.csv")); 
     Instances train =new Instances (reader); 
     train.setClassIndex(0);  
     reader.close(); 

     NaiveBayes nb = new NaiveBayes(); 
     nb.buildClassifier(train); 
     Evaluation eval = new Evaluation(train); 
     eval.crossValidateModel(nb, train, 10 , new Random(1)); 

     System.out.println(eval.toSummaryString("\n Results \n=====\n",true)); 
     System.out.println(eval.fMeasure(1)+" "+eval.precision(1)+" "+eval.recall(1)+" ");   
    } 
} 

有人能幫我？ 山訓練集是.csv格式

Answer 1

而不是使用緩衝讀者的你可以嘗試

DataSource source = new DataSource("/some/where/data.arff"); 

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