我想运行一个执行Weka命令的Java程序。 我运行的程序是http://weka.wikispaces.com/Use+WEKA+in+your+Java+code,在增量分类器下,“一个工作示例是IncrementalClassifier.java”。无法运行执行weka命令的java程序
这是我的代码,我改变了ARFF的地址:
java.io.FileNotFoundException: \iris.2.arff (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileReader.<init>(Unknown Source)
at weka.classifiers.bayes.net.ADNode.main(ADNode.java:270)
如何进行:
import weka.core.Instance;
import weka.core.Instances;
import weka.core.converters.ArffLoader;
import weka.classifiers.bayes.NaiveBayesUpdateable;
import java.io.File;
/**
* This example trains NaiveBayes incrementally on data obtained
* from the ArffLoader.
*
* @author FracPete (fracpete at waikato dot ac dot nz)
*/
public class IncrementalClassifier {
/**
* Expects an ARFF file as first argument (class attribute is assumed
* to be the last attribute).
*
* @param args the commandline arguments
* @throws Exception if something goes wrong
*/
public static void main(String[] args) throws Exception {
// load data
ArffLoader loader = new ArffLoader();
loader.setFile(new File("C:\\Program Files\\Weka-3-6\\10random+5.arff"));
Instances structure = loader.getStructure();
structure.setClassIndex(structure.numAttributes() - 1);
// train NaiveBayes
NaiveBayesUpdateable nb = new NaiveBayesUpdateable();
nb.buildClassifier(structure);
Instance current;
while ((current = loader.getNextInstance(structure)) != null)
nb.updateClassifier(current);
// output generated model
System.out.println(nb);
}
}
,我得到的是错误?
由于
感谢您的回复。我不知道如何根据您的反馈采取行动。 – user511440 2010-11-18 00:18:06
首先,更新您的帖子以包含整个堆栈跟踪,并指出源中的哪一行引发异常。 – 2010-11-18 00:34:15
我得到的错误是:1.项目'CN170'缺少所需的库:'C:\ Program Files \ Weka-3-4 \ weka.jar'(资源:CN170,位置:构建路径),2。在解决构建路径错误之前无法构建项目(资源:CN170,位置:未知),3.未处理的异常类型IOException(资源:simpleprog.java,位置:line18)。 – user511440 2010-11-20 01:53:22