itkStatisticsAlgorithm.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkStatisticsAlgorithm_h
#define itkStatisticsAlgorithm_h
 
#include "itkSubsample.h"
 
namespace itk
{
namespace Statistics
{
namespace Algorithm
{
template <typename TSize>
TSize
FloorLog(TSize size);
 
template <typename TValue>
TValue
MedianOfThree(const TValue a, const TValue b, const TValue c);
 
template <typename TSample>
void
FindSampleBound(const TSample *                           sample,
                const typename TSample::ConstIterator &   begin,
                const typename TSample::ConstIterator &   end,
                typename TSample::MeasurementVectorType & min,
                typename TSample::MeasurementVectorType & max);
 
template <typename TSubsample>
void
FindSampleBoundAndMean(const TSubsample *                           sample,
                       int                                          beginIndex,
                       int                                          endIndex,
                       typename TSubsample::MeasurementVectorType & min,
                       typename TSubsample::MeasurementVectorType & max,
                       typename TSubsample::MeasurementVectorType & mean);
 
template <typename TSubsample>
int
Partition(TSubsample *                               sample,
          unsigned int                               activeDimension,
          int                                        beginIndex,
          int                                        endIndex,
          const typename TSubsample::MeasurementType partitionValue);
 
template <typename TSubsample>
typename TSubsample::MeasurementType
QuickSelect(TSubsample *                         sample,
            unsigned int                         activeDimension,
            int                                  beginIndex,
            int                                  endIndex,
            int                                  kth,
            typename TSubsample::MeasurementType medianGuess);
 
template <typename TSubsample>
typename TSubsample::MeasurementType
QuickSelect(TSubsample * sample, unsigned int activeDimension, int beginIndex, int endIndex, int kth);
 
template <typename TSubsample>
typename TSubsample::MeasurementType
NthElement(TSubsample * sample, unsigned int activeDimension, int beginIndex, int endIndex, int nth);
 
template <typename TSubsample>
void
InsertSort(TSubsample * sample, unsigned int activeDimension, int beginIndex, int endIndex);
 
template <typename TSubsample>
void
DownHeap(TSubsample * sample, unsigned int activeDimension, int beginIndex, int endIndex, int node);
 
template <typename TSubsample>
void
HeapSort(TSubsample * sample, unsigned int activeDimension, int beginIndex, int endIndex);
 
template <typename TSubsample>
void
IntrospectiveSortLoop(TSubsample * sample,
                      unsigned int activeDimension,
                      int          beginIndex,
                      int          endIndex,
                      int          depthLimit,
                      int          sizeThreshold);
 
template <typename TSubsample>
void
IntrospectiveSort(TSubsample * sample, unsigned int activeDimension, int beginIndex, int endIndex, int sizeThreshold);
 
} // end of namespace Algorithm
} // end of namespace Statistics
} // end of namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkStatisticsAlgorithm.hxx"
#endif
 
#endif // #ifndef itkStatisticsAlgorithm_h