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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 "stdevf.h"
#include "abs.h"
void ccolumnstdevfa(floatComplex *in1, int lines, int columns, floatComplex*in2, floatComplex* out){
int i = 0;
int j = 0;
floatComplex temp = FloatComplex(0.0f,0.0f);
floatComplex accumulate = FloatComplex(0.0f,0.0f);
floatComplex accumulateFre = FloatComplex(0.0f,0.0f);
ccolumnmeanfa(in1, lines, columns, in2, out );
/*we first multiply each cell of the input matrix by its coefficient*/
for (j = 0; j < lines; ++j)
{
accumulate = FloatComplex(0.0f,0.0f);
accumulateFre = FloatComplex(0.0f,0.0f);
temp = FloatComplex(0.0f,0.0f);
for ( i = 0 ; i < columns; ++i )
{
temp = cpows ( cdiffs (in1[lines*i + j] ,out[j] ) ,FloatComplex (2.0f, 0.0f ) );
temp = cmuls( in2[lines*i + j] , temp);
accumulate = cadds( temp , accumulate);
accumulateFre = cadds (in2[lines*i + j] ,accumulateFre );
}
if (lines <= 1)
{
out[j] = cmuls (FloatComplex(0.0f,0.0f) , accumulate ) ;
}
else
{
if( sabss (creals(accumulate)) <= 3e-6 ) accumulate = FloatComplex(sabss(creals(accumulate)) ,cimags(accumulate));
if( sabss (cimags(accumulate)) <= 3e-6 ) accumulate = FloatComplex(creals(accumulate) ,sabss(cimags(accumulate)));
accumulate = crdivs (accumulate , cdiffs (accumulateFre ,FloatComplex(1.0f,0.0f)) );
out[j] =csqrts(accumulate);
}
}
}
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