johnsonTransform.hh

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#ifndef NPSTAT_JOHNSONTRANSFORM_HH_
#define NPSTAT_JOHNSONTRANSFORM_HH_
 
/*!
// \file johnsonTransform.hh
//
// \brief Determine the transform that generates a member of Johnson family
//        of frequency curves
//
// Author: I. Volobouev
//
// October 2022
*/
 
#include <memory>
 
#include "npstat/stat/AbsDistribution1D.hh"
#include "npstat/stat/AbsDistributionTransform1D.hh"
 
namespace npstat {
    // This function will throw an exception if the input
    // distribution is not a member of the Johnson family and not
    // a TransformedDistribution1D using the standard normal
    std::unique_ptr<AbsDistributionTransform1D> johnsonTransform(
        const AbsDistribution1D& distro);
 
#ifdef SWIG
    inline AbsDistributionTransform1D* johnsonTransform2(
        const AbsDistribution1D& d)
    {
        std::unique_ptr<AbsDistributionTransform1D> ptr = johnsonTransform(d);
        return ptr.release();
    }
#endif // SWIG
}
 
#endif // NPSTAT_JOHNSONTRANSFORM_HH_