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authorSandeep Gupta2017-06-18 23:55:40 +0530
committerSandeep Gupta2017-06-18 23:55:40 +0530
commitb43eccd4cffed5bd1017c5821524fb6e49202f78 (patch)
tree4c53d798252cbeae9bcf7dc9604524b20bb10f27 /2.3-1/src/c/statisticsFunctions/variance/svariancea.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"
+
+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 ;
+}