Java執行個體11 - 歸一化/標準化 Normalization__Java

/** * 歸一化，標準化可以 把數變為（0，1）之間的小數 * 主要是為了資料處理方便提出來的，把資料對應到0～1範圍之內處理 */package re;public class Normalization {public static void main(String[] args) {double[] p1 = {0, 0};double[] p2 = {3, 4};Normalization n = new Normalization();double result = n.getNormalizeDistance(p1, p2);System.out.println("Normalization result is " + result);}/** * @param point1 first point * @param point2 second point * @return the  normalization distance of two points */public double getNormalizeDistance(double[] point1, double[] point2) {    return 1 / (getDistance(point1, point2) + 1);}public double getDistance (double[] point1, double[] point2) {double distance = 0;for(int i=0; i<point1.length; i++) {distance = distance + Math.pow(point1[i]-point2[i], 2);}return Math.pow(distance, 0.5);}}