1 files changed, 36 insertions, 0 deletions
diff --git a/src/c/statisticsFunctions/variancef/zvariancefa.c b/src/c/statisticsFunctions/variancef/zvariancefa.c
new file mode 100644
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--- /dev/null
+++ b/src/c/statisticsFunctions/variancef/zvariancefa.c
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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 );
+  double accumulateFre = 0.0;
+
+  doubleComplex meanf = zmeanfa (in1 , size , in2);
+  //printf("\n\tComplex meanf result : %lf \t+ %lf i " ,zreals( meanf) ,zimags( meanf)) ;
+  for(i = 0 ; i < size ; ++i)
+    {
+     temp = zpows (  zdiffs (in1[i] , meanf ) ,DoubleComplex (2.0, 0.0 ) );
+     temp = zmuls( in2[i] , temp);
+     //printf("\n\tComplex accumulate : %lf \t+ %lf i   " ,zreals(temp) ,zimags(temp)) ;
+     accumulate = zadds( temp , accumulate);
+     accumulateFre +=  zreals(in2[i]);
+    }
+//printf("\n\tComplex division result : %lf \t+ %lf i / %lf  " ,zreals(accumulate) ,zimags(accumulate),accumulateFre) ;
+  return DoubleComplex( zreals(accumulate) /(accumulateFre -1),  zimags(accumulate) /(accumulateFre -1)); 
+}