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Thread: Question about loops
 04162008, 04:17 PM #1Member
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Question about loops
I have a class like this
Java Code:public static double Euclidean(double[] array1, double[] array2) { //Store the numbers of the both arrays double x1= array1[0]; double y1=array2[0]; double x2= array1[1]; double y2= array2[1]; double x3=array1[2]; double y3=array2[2]; //Compute the minus part of the formula double minusResult1 = y1x1; double minusResult2 = y2x2; double minusResult3 = y3x3; //Square the answers double square1 = pow(minusResult1, 2); double square2 = pow(minusResult2, 2); double square3 = pow(minusResult3, 2); //Sum the squares double sumOfSquares = square1+square2+square3; //Get the square root of the sumOfSquares double finalResult = sqrt(sumOfSquares); return finalResult; }
Example:
Java Code:x1 x2 x3 y1 9.30 5.65 5.02 y2 4.10 5.68 0.56 y3 4.75 0.11 2.86 y4 1.54 10.01 1.99 y5 6.29 5.62 2.78 y6 13.02 1.31 1.61 y7 5.85 3.79 6.56 y60 12.71 0.45 0.62
Last edited by BHCluster; 04162008 at 04:23 PM.
 04162008, 04:28 PM #2
You could put it into a for loop..
Java Code:for(int i = 0; i < 60; i++){ }
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 04162008, 04:49 PM #3Member
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you mean like this
public static double Euclidean(double[] array1, double[] array2){
//Store the numbers of the both arrays
double x;
double y
String[] arrayX;
arrayX = new String[3];
// Read each line into the array
for (int i = 0; i < arrayX.length; i++){
arrayX[i] = x();
}
String[] arrayY;
arrayY = new String[60];
// Read each line into the array
for (int i = 0; i < myarrayY.length; i++){
arrayY[i] = y();
}
}
 04162008, 04:59 PM #4
Yeah looks good to me. What happens when you compile it?
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 04162008, 05:40 PM #5Member
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I know you get pm alot but I am bit desperate because I don't know how to convert this:
Java Code:import java.io.*; import static java.lang.Math.*; class numbers public static double Euclidean(double[] array1, double[] array2) { //Store the numbers of the both arrays double x1= array1[0]; double y1=array2[0]; double x2= array1[1]; double y2= array2[1]; double x3=array1[2]; double y3=array2[2]; //Compute the minus part of the formula double minusResult1 = y1x1; double minusResult2 = y2x2; double minusResult3 = y3x3; //Square the answers double square1 = pow(minusResult1, 2); double square2 = pow(minusResult2, 2); double square3 = pow(minusResult3, 2); //Sum the squares double sumOfSquares = square1+square2+square3; //Get the square root of the sumOfSquares double finalResult = sqrt(sumOfSquares); return finalResult; } public static double Manhattan(double[] array1, double[] array2) { //Store the numbers of the both arrays double x1= array1[0]; double y1=array2[0]; double x2= array1[1]; double y2= array2[1]; double x3=array1[2]; double y3=array2[2]; //Compute the minus part of the formula double minusResult1 = y1x1; double minusResult2 = y2x2; double minusResult3 = y3x3; //Square the answers double abs1 = abs(minusResult1 ); double abs2 = abs(minusResult2); double abs3 = abs(minusResult3 ); //Sum the squares double sumOfAbs = abs1+abs2+abs3; //Get the square root of the sumOfAbs double finalResult = sqrt(sumOfAbs); return finalResult; } public static void main(String[] args) { double[] gene={9.30, 5.65, 5.02}; double[] gene1={4.10, 5.68, 0.56}; double EuclideanDist = Euclidean(gene, gene1); System.out.println("Euclidean distance = " + EuclideanDist); double ManhattanDist = Manhattan(gene, gene1); System.out.println("Manhattan = " + ManhattanDist); } }
Java Code:import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileInputStream; import java.io.FileWriter; import java.io.InputStreamReader; import java.io.Writer; import static java.lang.Math.*; public class csv { public static double Euclidean(double[] array1, double[] array2){ //Store the numbers of the both arrays double x; double y String[] arrayX; arrayX = new String[3]; // Read each line into the array for (int i = 0; i < arrayX.length; i++){ arrayX[i] = x(); } String[] arrayY; arrayY = new String[60]; // Read each line into the array for (int i = 0; i < myarrayY.length; i++){ arrayY[i] = y(); } String[] MinusResults; MinusResults = new String[61]; // Read each line into the array for (int i = 0; i < MinusResults.length; i++){ MinusResults[i] = y()  x(); } } public static double Manhattan(double[] array1, double[] array2){ } public static void main(String[] args) throws Exception { // Set file name & path String filepath = "Data_Set_1.txt"; //String output = "Output_Data_Set_1.txt"; // Read in file FileInputStream in = new FileInputStream(filepath); BufferedReader br = new BufferedReader(new InputStreamReader(in)); String strLine; //Write file //FileOutputStream out = new FileOutputStream(output); //BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(out)); // Declare Array which will hold 61 lines String[] myarray; myarray = new String[61]; // Read each line into the array for (int i = 0; i < myarray.length; i++){ myarray[i] = br.readLine(); } in.close(); // Print out array info in desired order. Delete " characters for (int i = 1; i < myarray.length; i++){ System.out.println(myarray[i].replace("\"", "")); } } }
Any help is greatly appreciated. Thank you for taking interest.
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