java代码实现weka中J48模型的代码
时间: 2024-05-04 07:19:52
浏览: 26
以下是一个简单的Java代码示例,用于加载训练好的J48模型并对新数据进行预测:
```java
import weka.classifiers.trees.J48;
import weka.core.Instances;
import weka.core.converters.ConverterUtils.DataSource;
public class J48Example {
public st[ati](https://geek.csdn.net/educolumn/150d7073277950db5f09620704e791cf?spm=1055.2569.3001.10083)c void main([string](https://geek.csdn.net/edu/8802d631b97a4a6af1f4d0bbf8527465?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)[] args) throws Exception {
// 加载训练好的模型
J48 j48 = (J48) weka.core.Serializ[ati](https://geek.csdn.net/educolumn/150d7073277950db5f09620704e791cf?spm=1055.2569.3001.10083)onHelper.read("path/to/j48.model");
// 加载[测试数据](https://geek.csdn.net/educolumn/0ae403dfc3a2481ebc47f05903364887?spm=1055.2569.3001.10083)
DataSource source = new DataSource("path/to/test.arff");
Instances testData = source.getDataSet();
testData.setClassIndex(testData.numAttributes() - 1);
// 对[测试数据](https://geek.csdn.net/educolumn/0ae403dfc3a2481ebc47f05903364887?spm=1055.2569.3001.10083)进行分类
for (int i = 0; i < testData.numInstances(); i++) {
double predictedClass = j48.classifyInstance(testDa
```