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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2008-2008 - INRIA - Allan SIMON
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
*/
#include "variancef.h"
#include "division.h"
doubleComplex zvariancefa(doubleComplex *in1, int size, doubleComplex *in2)
{
int i = 0 ;
doubleComplex temp = DoubleComplex (0.0, 0.0 );
doubleComplex accumulate =DoubleComplex (0.0, 0.0 );
doubleComplex accumulateFre = DoubleComplex (0.0, 0.0 );
doubleComplex meanf = zmeanfa (in1 , size , in2);
for(i = 0 ; i < size ; ++i)
{
temp = zpows ( zdiffs (in1[i] , meanf ) ,DoubleComplex (2.0, 0.0 ) );
temp = zmuls( in2[i] , temp);
accumulate = zadds( temp , accumulate);
accumulateFre = zadds(in2[i ] ,accumulateFre );
}
return zrdivs(accumulate, zdiffs(accumulateFre ,DoubleComplex(1.0,0.0) ));
}
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