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itkWeightedMeanCalculator.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkWeightedMeanCalculator.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-03-04 19:29:55 $
00007   Version:   $Revision: 1.8 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #ifndef __itkWeightedMeanCalculator_h
00019 #define __itkWeightedMeanCalculator_h
00020 
00021 #include <vnl/vnl_vector.h>
00022 #include <vnl/vnl_matrix.h>
00023 
00024 #include "itkArray.h"
00025 #include "itkFunctionBase.h"
00026 #include "itkSampleAlgorithmBase.h"
00027 
00028 namespace itk { 
00029 namespace Statistics {
00030   
00049 template< class TSample >
00050 class WeightedMeanCalculator :
00051     public SampleAlgorithmBase< TSample >
00052 {
00053 public:
00055   typedef WeightedMeanCalculator         Self;
00056   typedef SampleAlgorithmBase< TSample > Superclass;
00057   typedef SmartPointer<Self>             Pointer;
00058   typedef SmartPointer<const Self>       ConstPointer;
00059 
00061   itkTypeMacro(WeightedMeanCalculator, SampleAlgorithmBase);
00062   itkNewMacro(Self);
00064 
00066   typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;
00067 
00068   typedef typename TSample::MeasurementVectorType MeasurementVectorType;
00069 
00071   typedef Array< double >           OutputType;
00072 
00074   typedef Array< double > WeightArrayType;
00075 
00077   void SetWeights(WeightArrayType* array);
00078 
00080   WeightArrayType* GetWeights();
00081 
00083   typedef FunctionBase< MeasurementVectorType, double > WeightFunctionType;
00084 
00088   void SetWeightFunction(WeightFunctionType* func);
00089 
00091   WeightFunctionType* GetWeightFunction();
00092 
00094   OutputType* GetOutput();
00095 
00096 protected:
00097   WeightedMeanCalculator();
00098   virtual ~WeightedMeanCalculator() {}
00099   void PrintSelf(std::ostream& os, Indent indent) const;
00100 
00102   void GenerateData();
00103 
00104 private:
00105   WeightArrayType*    m_Weights;
00106   WeightFunctionType* m_WeightFunction;
00107   OutputType          m_Output;
00108 }; // end of class
00109     
00110 } // end of namespace Statistics 
00111 } // end of namespace itk 
00112 
00113 #ifndef ITK_MANUAL_INSTANTIATION
00114 #include "itkWeightedMeanCalculator.txx"
00115 #endif
00116 
00117 #endif
00118 

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