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1 files changed, 63 insertions, 0 deletions

diff --git a/src/c/statisticsFunctions/stdevf/zrowstdevfa.c b/src/c/statisticsFunctions/stdevf/zrowstdevfa.c
new file mode 100644
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+++ b/src/c/statisticsFunctions/stdevf/zrowstdevfa.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 "stdevf.h"
+#include "meanf.h"
+#include "abs.h"
+
+
+
+void zrowstdevfa(doubleComplex *in1, int lines, int columns, doubleComplex*in2, doubleComplex* out){
+  int i = 0;
+  int j = 0;
+  doubleComplex temp = DoubleComplex(0.0,0.0);
+  doubleComplex accumulate = DoubleComplex(0.0,0.0);
+  doubleComplex accumulateFre = DoubleComplex(0.0,0.0);
+    
+  zrowmeanfa(in1, lines, columns, in2, out );
+
+  /*we first multiply each zell of the input matrix by its coefficient*/
+  for (j = 0; j < columns; ++j)
+    {
+
+      accumulate = DoubleComplex(0.0,0.0);
+      accumulateFre =DoubleComplex(0.0,0.0);
+      temp = DoubleComplex(0.0,0.0);
+
+      for ( i = 0 ; i < lines; ++i )
+        {
+
+         temp = zpows (  zdiffs (in1[lines*j + i] ,out[j] ) ,DoubleComplex (2.0, 0.0 ) );
+         temp = zmuls( in2[lines*j + i] , temp);
+
+         accumulate = zadds( temp , accumulate);
+         accumulateFre = zadds(in2[lines*j + i] ,accumulateFre );
+
+        } 
+
+      if (lines <= 1)
+        {
+          out[j] = zmuls (DoubleComplex(0.0,0.0) , accumulate ) ; 
+        }
+      else
+        {
+	  if( dabss (zreals(accumulate)) <= 3e-14 ) accumulate = DoubleComplex(dabss(zreals(accumulate)) ,zimags(accumulate));
+	  if( dabss (zimags(accumulate)) <= 3e-14 ) accumulate = DoubleComplex(zreals(accumulate) ,dabss(zimags(accumulate)));
+
+
+        accumulate = zrdivs(accumulate, zdiffs(accumulateFre ,DoubleComplex(1.0,0.0)));
+        out[j] = zsqrts(accumulate);
+
+        }
+    }
+
+}