discreteVariable.h

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#ifndef GUM_DISCRETE_VARIABLE_H
#define GUM_DISCRETE_VARIABLE_H
 
#include <ostream>
#include <string>
 
#include <agrum/agrum.h>
 
#include <agrum/base/core/set.h>
#include <agrum/base/variables/variable.h>
 
#include <string_view>
 
namespace gum {
  /* ===========================================================================
   */
  /* ===========================================================================
   */
  /* ===                         GUM_DISCRETE_VARIABLE                       ===
   */
  /* ===========================================================================
   */
  /* ===========================================================================
   */
  /* ===========================================================================
   */
 
  class DiscreteVariable: public Variable {
    public:
    // ############################################################################
    // ############################################################################

 
    DiscreteVariable(std::string_view aName, std::string_view aDesc);


    DiscreteVariable(const DiscreteVariable& aDRV);

    ~DiscreteVariable() override;

    [[nodiscard]] DiscreteVariable* clone() const override = 0;

 
    // ############################################################################
    // ############################################################################

    bool empty() const;

    virtual Size domainSize() const = 0;

    std::vector< std::string > labels() const;

    virtual double numerical(Idx indice) const = 0;
 
    virtual bool isEmpirical() const;

    bool isNumerical() const;

    virtual Idx closestIndex(double val) const = 0;
    virtual std::string closestLabel(double val) const;

    VarType varType() const override = 0;
 
    // returns the variable in fast syntax
    virtual std::string toFast() const = 0;

 
    // ############################################################################
    // ############################################################################


 
    DiscreteVariable& operator=(const DiscreteVariable& aRV);


    Idx operator[](std::string_view label) const;
 
    virtual Idx index(std::string_view label) const = 0;


    virtual std::string label(Idx i) const = 0;

    std::string toString() const;

    std::string toStringWithDescription() const;

    std::string domain() const override = 0;

    virtual std::string stype() const = 0;
 
    protected:
    DiscreteVariable();
  };

 
  std::ostream& operator<<(std::ostream&, const DiscreteVariable&);
 
  using VariableSet = Set< const DiscreteVariable* >;
} /* namespace gum */
 
#ifndef GUM_NO_INLINE
#  include <agrum/base/variables/discreteVariable_inl.h>
#endif /* GUM_NO_INLINE */
 
#endif /* GUM_DISCRETE_VARIABLE_H */