Tagging the 2.0 release of scilab2crelease-2.0

1 files changed, 34 insertions, 0 deletions

diff --git a/src/c/statisticsFunctions/variance/svariancea.c b/src/c/statisticsFunctions/variance/svariancea.c
new file mode 100644
index 00000000..426fc454
--- /dev/null
+++ b/src/c/statisticsFunctions/variance/svariancea.c
@@ -0,0 +1,34 @@
+/*
+ *  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" 
+
+float	svariancea(float *in, int size)
+{
+    int i = 0 ;
+    
+    float temp = 0 ;
+    float variance = 0;
+    
+    float mean =  smeana ( in , size );
+ 
+    for ( i = 0 ; i < size ; i++)
+    { 
+       temp += spows (  (in[i]  - mean ) ,2 ) ;
+    }
+    
+    
+    variance =  ( temp )/ (float)( size -1);
+   
+    
+    return variance ;
+}