#ifndef STAT
#define STAT

using std::string;
using namespace std;

class Stat {

public:
  Stat();
  ~Stat();
  void add(double);
  double get_mean();
//  double get_std();
//  double get_n();
  double get_min();
  double get_max();

  friend ostream & operator <<(ostream &os, const Stat &obj);

protected:
  long n;
  double x;
  double x2;
  double minX;
  double maxX;
};

#endif