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[FrontAlgorithms.git] / lib / fpa / Common / IncrementalMeanAndVariance.h

diff --git a/lib/fpa/Common/IncrementalMeanAndVariance.h b/lib/fpa/Common/IncrementalMeanAndVariance.h
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+++ b/lib/fpa/Common/IncrementalMeanAndVariance.h
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+// =========================================================================
+// @author Leonardo Florez Valencia
+// @email florez-l@javeriana.edu.co
+// =========================================================================
+#ifndef __fpa__Common__IncrementalMeanAndVariance__h__
+#define __fpa__Common__IncrementalMeanAndVariance__h__
+
+#include <fpa/fpa_export.h>
+
+namespace fpa
+{
+  namespace Common
+  {
+    /**
+     */
+    class FPA_EXPORT IncrementalMeanAndVariance
+    {
+    public:
+      typedef IncrementalMeanAndVariance Self;
+
+    public:
+      IncrementalMeanAndVariance( );
+      virtual ~IncrementalMeanAndVariance( );
+
+      double GetMean( ) const;
+      double GetVariance( ) const;
+      double GetDeviation( ) const;
+      unsigned long GetNumberOfSamples( ) const;
+
+      void Clear( );
+      void AddValue( double v );
+
+    protected:
+      double m_M;
+      double m_V;
+      double m_N;
+    };
+
+  } // ecapseman
+
+} // ecapseman
+
+#endif // __fpa__Common__IncrementalMeanAndVariance__h__
+// eof - $RCSfile$