com.opengamma.analytics.math.interpolation.DistanceCalculator.java Source code

Introduction

Here is the source code for com.opengamma.analytics.math.interpolation.DistanceCalculator.java

Source

/**
 * Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies
 * 
 * Please see distribution for license.
 */
package com.opengamma.analytics.math.interpolation;

import org.apache.commons.lang.Validate;

/**
 * 
 */
public class DistanceCalculator {

    public static double getDistance(final double[] x1, final double[] x2) {
        final int dim = x1.length;
        Validate.isTrue(dim == x2.length, "different dimensions");
        double sum = 0;
        double diff;
        for (int i = 0; i < dim; i++) {
            diff = x1[i] - x2[i];
            sum += diff * diff;
        }
        return Math.sqrt(sum);
    }
}