multiNormal.H

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/*---------------------------------------------------------------------------*\
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License
    This file is part of OpenFOAM.

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Class
    Foam::multiNormal

Description
    A multiNormal pdf

    @verbatim
        pdf = sum_i strength_i * exp(-0.5*((x - expectation_i)/variance_i)^2 )
    @endverbatim


SourceFiles
    multiNormal.C

\*---------------------------------------------------------------------------*/

#ifndef multiNormal_H
#define multiNormal_H

#include <pdf/pdf.H>

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace pdfs
{

/*---------------------------------------------------------------------------*\
                        Class multiNormal Declaration
\*---------------------------------------------------------------------------*/

class multiNormal
:
    public pdf
{
    // Private data

        //- Distribution minimum
        scalar minValue_;

        //- Distribution maximum
        scalar maxValue_;

        //- Distribution range
        scalar range_;


        // Model coefficients

            List<scalar> expectation_;
            List<scalar> variance_;
            List<scalar> strength_;


public:

    //- Runtime type information
    TypeName("multiNormal");


    // Constructors

        //- Construct from components
        multiNormal
        (
            const dictionary& dict,
            Random& rndGen
        );


    //- Destructor
    virtual ~multiNormal();


    // Member Functions

        //- Sample the pdf
        virtual scalar sample() const;

        //- Return the minimum value
        virtual scalar minValue() const;

        //- Return the maximum value
        virtual scalar maxValue() const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace pdfs
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //