通过TextDirectoryToArff.java将txt文件转换为arff文件
我正试图通过通过TextDirectoryToArff.java将txt文件转换为arff文件,java,weka,arff,Java,Weka,Arff,我正试图通过TextDirectoryToArff.java将txt文件转换为arff。我在Windows操作系统上使用eclipse,其用法告诉我要TextDirectoryToArff。但我不确定这意味着什么。 有人能帮我做这个项目吗 TextDirectoryToArff.java:- import java.io.*; import weka.core.*; /** * Builds an arff dataset from the documents in a given dire
TextDirectoryToArff.java
将txt文件转换为arff。我在Windows操作系统上使用eclipse,其用法告诉我要TextDirectoryToArff
。但我不确定这意味着什么。
有人能帮我做这个项目吗
TextDirectoryToArff.java:-
import java.io.*;
import weka.core.*;
/**
* Builds an arff dataset from the documents in a given directory.
* Assumes that the file names for the documents end with ".txt".
*
* Usage:<p>
*
* TextDirectoryToArff <directory path><p>
*
* @author Richard Kirkby (rkirkby at cs.waikato.ac.nz)
* @version 1.0
*/
public class TextDirectoryToArff {
public Instances createDataset(String directoryPath) throws Exception {
FastVector atts = new FastVector(2);
atts.addElement(new Attribute("filename", (FastVector) null));
atts.addElement(new Attribute("contents", (FastVector) null));
Instances data = new Instances("text_files_in_" + directoryPath, atts, 0);
File dir = new File(directoryPath);
String[] files = dir.list();
for (int i = 0; i < files.length; i++) {
if (files[i].endsWith(".txt")) {
try {
double[] newInst = new double[2];
newInst[0] = (double)data.attribute(0).addStringValue(files[i]);
File txt = new File(directoryPath + File.separator + files[i]);
InputStreamReader is;
is = new InputStreamReader(new FileInputStream(txt));
StringBuffer txtStr = new StringBuffer();
int c;
while ((c = is.read()) != -1) {
txtStr.append((char)c);
}
newInst[1] = (double)data.attribute(1).addStringValue(txtStr.toString());
data.add(new Instance(1.0, newInst));
} catch (Exception e) {
//System.err.println("failed to convert file: " + directoryPath + File.separator + files[i]);
}
}
}
return data;
}
public static void main(String[] args) {
if (args.length == 1) {
TextDirectoryToArff tdta = new TextDirectoryToArff();
try {
Instances dataset = tdta.createDataset(args[0]);
System.out.println(dataset);
}
catch (Exception e) {
System.err.println(e.getMessage());
e.printStackTrace();
}
}
else {
System.out.println("Usage: java TextDirectoryToArff <directory name>");
}
}
}
import java.io.*;
导入weka.core.*;
/**
*从给定目录中的文档生成arff数据集。
*假定文档的文件名以“.txt”结尾。
*
*用法:
*
*TextDirectoryToArff
*
*@作者Richard Kirkby(rkirkby位于cs.waikato.ac.nz)
*@version 1.0
*/
公共类TextDirectoryToArff{
公共实例createDataset(字符串目录路径)引发异常{
FastVector atts=新的FastVector(2);
atts.addElement(新属性(“filename”,(FastVector)null));
atts.addElement(新属性(“contents”,(FastVector)null));
实例数据=新实例(“文本文件中的文件”+目录路径,附件,0);
文件目录=新文件(目录路径);
String[]files=dir.list();
对于(int i=0;i
Weka要求您使用JAVA执行TextDirectoryToArff,并将其作为参数传递到目录
您有两个选择:
- 1) 生成一个名为“TextDirectoryToArff”的JAR,然后通过Windows中的控制台使用JAVA,并执行JAVA TextDirectoryToArff将目录作为参数进行传递
- 2) 从Eclipse中,您可以直接传递目录,如修改数据集,然后执行Run,Run
致:Instances dataset = tdta.createDataset(args[0]);
Instances dataset = tdta.createDataset("C:\\yourDir");