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- import lombok.val;
- import org.apache.commons.io.FileUtils;
- import java.io.File;
- import java.io.FileWriter;
- import java.io.IOException;
- import java.util.ArrayList;
- import java.util.List;
- import java.util.Random;
- public class RandomGenerator {
- List createRandomGaussianSequence(int number){
- var list = new ArrayList<>();
- var random = new Random();
- for(var i =0; i < number ; i++){
- list.add(random.nextDouble());
- }
- return list;
- }
- void createFile(String filename,String folder, List<Double> list){
- try {
- FileWriter myWriter = new FileWriter("./"+folder+"/"+filename+".csv");
- String values = "";
- for(Double data: list) {
- values+= data +",";
- }
- //delete last comma
- values = values.replaceAll(", $", "\n");
- myWriter.write(values);
- myWriter.close();
- } catch (IOException e) {
- System.out.println("An error occurred.");
- e.printStackTrace();
- }
- }
- void createDirectories(String featureDir, String targetDir) {
- File feature = new File(featureDir);
- File target = new File(targetDir);
- boolean isFeatureDirectoryCreated = feature.mkdir();
- if (isFeatureDirectoryCreated) {
- System.out.println("successfully made");
- } else {
- deleteDir(feature); // Invoke recursive method
- feature.mkdir();
- }
- boolean isTargetDirectoryCreated = target.mkdir();
- if (isTargetDirectoryCreated) {
- System.out.println("successfully made");
- } else {
- deleteDir(target); // Invoke recursive method
- feature.mkdir();
- }
- }
- public void deleteDir(File dir) {
- File[] files = dir.listFiles();
- for (File myFile: files) {
- if (myFile.isDirectory()) {
- deleteDir(myFile);
- }
- myFile.delete();
- }
- }
- void createCSV(String featureFolder, String targetFolder, int numberOfFiles, int sizeOfSequence){
- createDirectories(featureFolder, targetFolder);
- for(Integer i=0; i <= numberOfFiles; i++){
- var list = createRandomGaussianSequence(sizeOfSequence);
- //Save Features
- createFile(i.toString(),featureFolder,list.subList(0,list.size()-2));
- //Save Target
- createFile(i.toString(),targetFolder,list.subList(list.size()-2,list.size()-1));
- }
- }
- }
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