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Weibull.hpp

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 * This file is part of openWNS (open Wireless Network Simulator)
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 * Copyright (C) 2004-2007
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 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
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 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#ifndef WNS_DISTRIBUTION_WEIBULL_HPP
#define WNS_DISTRIBUTION_WEIBULL_HPP

#include <WNS/distribution/Distribution.hpp>
#include <WNS/distribution/Uniform.hpp>

namespace wns { namespace distribution {

    /* Weibull distributed random numbers */
    class Weibull :
    public Distribution,
    public IHasMean
    {

    public:
      explicit
      Weibull(double scale, double shape, wns::rng::RNGen* rng = wns::simulator::getRNG());

      explicit
      Weibull(const pyconfig::View& config);

      explicit
      Weibull(wns::rng::RNGen* rng, const pyconfig::View& config);

      virtual
      ~Weibull();

      virtual double
      operator()();

      virtual double
      getMean() const;

      virtual std::string
      paramString() const;

      double
      gamma(double x);

    private:
      double mean_;
      double variance_;
      double scale_;
      double shape_;

      wns::distribution::Distribution* uniDis;

    };

  } // distribution
} // wns

#endif  // WNS_DISTRIBUTION_WEIBULLDIS_HPP

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