PDF.h

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#ifndef PROBLIB_PDF_H_
#define PROBLIB_PDF_H_

#include "problib/globals.h"

namespace pbl {

class Gaussian;
class Mixture;

class PDF {

public:

        enum PDFType {
                GAUSSIAN,
                MIXTURE,
                UNIFORM,
                DISCRETE,
                EXACT,
        HYBRID,
                UNKNOWN
        };

        PDF(int dimensions, PDFType type);

        PDF(const PDF& orig);

        virtual ~PDF();

        virtual PDF* clone() const = 0;

        //virtual double getDensity(const arma::vec& v) const = 0;

        virtual double getMaxDensity() const = 0;

        virtual bool getExpectedValue(std::string& v) const;

        virtual bool getExpectedValue(arma::vec& v) const;

        virtual double getLikelihood(const PDF& pdf) const = 0;

        int dimensions() const;

        PDFType type() const;

        virtual std::string toString(const std::string& indent = "") const = 0;

protected:

        int dimensions_;

        PDFType type_;

};

}

#endif /* PDF_H_ */