XXPolynomialRegression.h

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#ifndef XXPolynomialRegressionH
#define XXPolynomialRegressionH
 
#include "XXMathExportDef.h"
#include "XXPolynomial.h"
 
#include "XXPolynomialSegmentBundle.h"
 
namespace XX
{
 
   class XXMATH_DECLSPEC Polynomial::Regression
   {
   public:
      Regression(size_t size);
 
   public:
      struct Section
      {
         size_t start = 0;
         size_t end = 0;
         bool steady = false; // no jump to next section
 
         size_t length() const;
 
         using List = QList<Section>;
      };
 
   public:
      size_t size() const;
      void setValue(const size_t index, const double& value);
      void clear();
 
      Segment::Bundle fit(size_t degree, double threshold, size_t overFit = 2, size_t maxSegmentLength = 50) const;
      Section::List compileSections(double threshold, size_t maxSegmentLength = 50) const;
      const QVector<double>& getValues() const;
 
   private:
      QVector<double> values;
   };
} // namespace XX
 
#endif // NOT XXPolynomialRegressionH