Java实例11 - 归一化/标准化 Normalization

/** * 归一化，标准化可以 把数变为（0，1）之间的小数 * 主要是为了数据处理方便提出来的，把数据映射到0～1范围之内处理 */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);}}