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The Apache Commons Codec package contains simple encoder and decoders for
various formats such as Base64 and Hexadecimal. In addition to these
widely used encoders and decoders, the codec package also maintains a
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/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.poi.ss.formula.functions;
/**
* Implementation of Excel function SUMXMY2()
*
* Calculates the sum of squares of differences between two arrays of the same size.
* Syntax:
* SUMXMY2(arrayX, arrayY)
*
* result = Σi: 0..n(xi-yi)2
*
* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
*/
public final class Sumxmy2 extends XYNumericFunction {
private static final Accumulator XMinusYSquaredAccumulator = new Accumulator() {
public double accumulate(double x, double y) {
double xmy = x - y;
return xmy * xmy;
}
};
protected Accumulator createAccumulator() {
return XMinusYSquaredAccumulator;
}
}