distribution.h

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#if !defined(VITA_DISTRIBUTION_H)
#define      VITA_DISTRIBUTION_H
 
#include <cmath>
#include <iomanip>
#include <map>
 
#include "kernel/log.h"
#include "utility/utility.h"
 
namespace vita
{
template<class T>
class distribution
{
public:
  distribution();
 
  void clear();
 
  template<class U> void add(U);
 
  std::uintmax_t count() const;
  double entropy() const;
  T max() const;
  T mean() const;
  T min() const;
  const std::map<T, std::uintmax_t> &seen() const;
  T standard_deviation() const;
  T variance() const;
 
  bool is_valid() const;
 
public:   // Serialization
  bool load(std::istream &);
  bool save(std::ostream &) const;
 
private:  // Private methods
  void update_variance(T);
 
private:  // Private data members
  std::map<T, std::uintmax_t> seen_;
 
  T m2_;
  T max_;
  T mean_;
  T min_;
 
  std::uintmax_t count_;
};
 
#include "kernel/distribution.tcc"
}  // namespace vita
 
#endif  // Include guard