Measurement.h

// -*- C++ -*-
//
// Measurement.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2007 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef LWH_Measurement_H
#define LWH_Measurement_H
//
// This is the declaration of the Measurement class representing
//


#include <limits>
#include <cmath>
#include <algorithm>
#include "AIMeasurement.h"

namespace LWH {

using namespace AIDA;

class Measurement: public IMeasurement {

public: 

  Measurement(double v = 0.0, double ep = 0.0, double em = 0.0)
    : val(v), errp(ep), errm(em) {}

  Measurement(const Measurement & m)
    :IMeasurement(m), val(m.val), errp(m.errp), errm(m.errm) {}

  virtual ~Measurement() { /* nop */; }

  double value() const {
    return val;
  }

  double errorPlus() const {
    return errp;
  }

  double errorMinus() const {
    return errm;
  }

  bool setValue(double v) {
    val = v;
    return true;
  }

  bool setErrorPlus(double ep) {
    errp = ep;
    return ep < 0.0;
  }

  bool setErrorMinus(double em) {
    errm = em;
    return em < 0.0;
  }

private:

  double val;

  double errp;

  double errm;

};

}

#endif /* LWH_Measurement_H */

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