From 8b44229ef44f0558ce045e46ff833fb44df913c9 Mon Sep 17 00:00:00 2001 From: jofret Date: Mon, 21 Jun 2010 06:24:38 +0000 Subject: Tagging the 2.0 release of scilab2c --- src/c/statisticsFunctions/variancef/dvariancefa.c | 35 +++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/c/statisticsFunctions/variancef/dvariancefa.c (limited to 'src/c/statisticsFunctions/variancef/dvariancefa.c') diff --git a/src/c/statisticsFunctions/variancef/dvariancefa.c b/src/c/statisticsFunctions/variancef/dvariancefa.c new file mode 100644 index 00000000..32bd38ca --- /dev/null +++ b/src/c/statisticsFunctions/variancef/dvariancefa.c @@ -0,0 +1,35 @@ +/* + * 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" + +double dvariancefa(double *in1, int size , double * in2) +{ + int i = 0 ; + double temp = 0.0; + double accumulate = 0.0 ; + double accumulateFre = 0.0 ; + + double meanf = dmeanfa (in1 , size , in2); + + for(i = 0 ; i < size ; ++i) + { + temp = dpows ( (in1[i] - meanf ) ,2 ); + temp *= in2[i]; + + accumulate += temp ; + accumulateFre += in2[i]; + } + + return accumulate / (accumulateFre -1); +} + -- cgit