Original Version

1 files changed, 36 insertions, 0 deletions

diff --git a/src/c/statisticsFunctions/variance/cvariancea.c b/src/c/statisticsFunctions/variance/cvariancea.c
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+++ b/src/c/statisticsFunctions/variance/cvariancea.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 "variance.h"
+
+floatComplex	cvariancea(floatComplex *in, int size)
+{
+    int i = 0 ;
+    
+    floatComplex sum  = FloatComplex ( 0 , 0 ) ;
+    floatComplex temp = FloatComplex ( 0 , 0 ) ; 
+    floatComplex variance = FloatComplex ( 0 , 0 );
+    floatComplex mean =  cmeana ( in , size ) ;
+     
+    for ( i = 0 ; i < size ; i++)
+    {
+       temp = cdiffs( in[i] , mean ) ;
+       sum  = cadds ( sum , cpows ( temp  , FloatComplex ( 2, 0) ) );
+    }
+ 
+    variance = crdivs (sum , FloatComplex ( (float)(size - 1),0 ));
+  
+    return variance ;
+
+
+}
+