added functions which computes variances , the float complex functions seems to have a weak precision ( 1-e04 instead of 1-e06 for some value )

1 files changed, 29 insertions, 0 deletions

diff --git a/src/statisticsFunctions/variance/ccolumnvariancea.c b/src/statisticsFunctions/variance/ccolumnvariancea.c
new file mode 100644
index 00000000..f57e2cb4
--- /dev/null
+++ b/src/statisticsFunctions/variance/ccolumnvariancea.c
@@ -0,0 +1,29 @@
+/*
+ *  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"
+
+void ccolumnvariancea(floatComplex *in, int lines, int columns, floatComplex* out){
+    
+    int i = 0 ;
+
+    
+    floatComplex* mean = (floatComplex*) malloc( sizeof (floatComplex) * (unsigned int) lines );
+
+    
+    for ( i = 0; i < lines ; i++)
+    out[i] = cvariancea ( in + i*columns , columns ) ;
+    
+    free ( mean );
+
+}