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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"
floatComplex cvariancefa(floatComplex *in1, int size, floatComplex *in2)
{
int i = 0 ;
floatComplex temp = FloatComplex (0.0f, 0.0f );
floatComplex accumulate =FloatComplex (0.0f, 0.0f );
floatComplex accumulateFre = FloatComplex (0.0f, 0.0f );
floatComplex meanf = cmeanfa (in1 , size , in2);
for(i = 0 ; i < size ; ++i)
{
temp = cpows ( cdiffs (in1[i] , meanf ) ,FloatComplex (2.0f, 0.0f ) );
temp = cmuls( in2[i] , temp);
accumulate = cadds( temp , accumulate);
accumulateFre = cadds (in2[i] ,accumulateFre );
}
return crdivs (accumulate , cdiffs (accumulateFre ,FloatComplex(1.0f,0.0f)) );
}
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