/*
* 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,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Created on May 15, 2005
*
*/
package org.apache.poi.hssf.record.formula.functions;
import org.apache.poi.hssf.record.formula.eval.ErrorEval;
import org.apache.poi.hssf.record.formula.eval.Eval;
import org.apache.poi.hssf.record.formula.eval.NumberEval;
import org.apache.poi.hssf.record.formula.eval.ValueEval;
/**
* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
*
*/
public class Sumx2my2 extends XYNumericFunction {
public Eval evaluate(Eval[] operands, int srcCellRow, short srcCellCol) {
ValueEval retval = null;
double[][] values = null;
int checkLen = 0; // check to see that all array lengths are equal
switch (operands.length) {
default:
retval = ErrorEval.VALUE_INVALID;
break;
case 2:
values = getValues(operands, srcCellRow, srcCellCol);
if (values==null
|| values[X] == null || values[Y] == null
|| values[X].length == 0 || values[Y].length == 0
|| values[X].length != values[Y].length) {
retval = ErrorEval.VALUE_INVALID;
}
}
if (retval == null) {
double d = MathX.sumx2my2(values[X], values[Y]);
retval = (Double.isNaN(d) || Double.isInfinite(d))
? (ValueEval) ErrorEval.NUM_ERROR
: new NumberEval(d);
}
return retval;
}
}
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