I'm trying to read the ex2data2.txt which contains dataset with 3 columns. I want to store it in my x array and y array. but it is not working. it cannot read the text file. the location of text file is in my src folder along with my codes.
double[][] x = new double[180][1];
double[][] y = new double[180][0];
try{
BufferedReader br=new BufferedReader(new FileReader("ex2data2.txt"));
String words[]=new String[2];
String line=null;
int i = 0;
while((line=br.readLine())!=null){
words=line.split(",");
//double[i] y = Double.parseDouble(words);
x[i][0] = Double.parseDouble(words[0]);
x[i][1] = Double.parseDouble(words[1]);
y[i][0] = Double.parseDouble(words[2]);
i++;
}
br.close();
}
catch(Exception e){
System.err.println("Error: Target File Cannot Be Read");
}
You should put the file in the top, parent project folder. not in src/.
Edit : I have run this, for proof...
Accessing file, read all the data.
java.lang.NumberFormatException: For input string: "43 323 33" this I have put in that file
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1241)
at java.lang.Double.parseDouble(Double.java:540)
at com.rem.so.Rem.main(Rem.java:18)
Next run
java.lang.ArrayIndexOutOfBoundsException: 1
at com.rem.so.Rem.main(Rem.java:19)
After correcting this..
double[][] x = new double[180][2];
double[][] y = new double[180][1];
it is now done.
Please find the screenshot where I have put the file...