Tagging the 2.0 release of scilab2crelease-2.0

1 files changed, 59 insertions, 0 deletions

diff --git a/src/c/statisticsFunctions/stdevf/crowstdevfa.c b/src/c/statisticsFunctions/stdevf/crowstdevfa.c
new file mode 100644
index 00000000..38d8cb23
--- /dev/null
+++ b/src/c/statisticsFunctions/stdevf/crowstdevfa.c
@@ -0,0 +1,59 @@
+/*
+ *  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 crowstdevfa(floatComplex *in1, int lines, int columns, floatComplex*in2, floatComplex* out){
+  int i = 0;
+  int j = 0;
+  floatComplex temp = FloatComplex(0.0f,0.0f);
+  floatComplex accumulate = FloatComplex(0.0f,0.0f);
+  floatComplex accumulateFre = FloatComplex(0.0f,0.0f);
+    
+  crowmeanfa(in1, lines, columns, in2, out );
+
+  /*we first multiply each cell of the input matrix by its coefficient*/
+  for (j = 0; j < columns; ++j)
+    {
+      accumulate = FloatComplex(0.0f,0.0f);
+      accumulateFre =FloatComplex(0.0f,0.0f);
+      temp = FloatComplex(0.0f,0.0f);
+
+      for ( i = 0 ; i < lines; ++i )
+        {
+
+         temp = cpows (  cdiffs (in1[lines*j + i] ,out[j] ) ,FloatComplex (2.0f, 0.0f ) );
+         temp = cmuls( in2[lines*j + i] , temp);
+
+         accumulate = cadds( temp , accumulate);
+         accumulateFre =  cadds (in2[lines*j + i] ,accumulateFre );
+
+        } 
+
+      if (lines <= 1)
+        {
+          out[j] = cmuls (FloatComplex(0.0f,0.0f) , accumulate ) ; 
+        }
+      else
+        {
+	  if( sabss (creals(accumulate)) <= 3e-6 ) accumulate = FloatComplex(sabss(creals(accumulate)) ,cimags(accumulate));
+	  if( sabss (cimags(accumulate)) <= 3e-6 ) accumulate = FloatComplex(creals(accumulate) ,sabss(cimags(accumulate)));
+          accumulate =   crdivs (accumulate , cdiffs (accumulateFre ,FloatComplex(1.0f,0.0f))   );
+          out[j] =csqrts(accumulate);
+        }
+    }
+
+}