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//                                               -*- C++ -*-
/**
 *  @file               LowDiscrepancySequence.hxx
 *  @brief      Interface for low discrepancy sequences
 *
 *  (C) Copyright 2005-2011 EDF-EADS-Phimeca
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License.
 *
 *  This library is distributed in the hope that it will be useful
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 *  @author: $LastChangedBy$
 *  @date:   $LastChangedDate$
 *  Id:      $Id$
 */
#ifndef OPENTURNS_LOWDISCREPANCYSEQUENCE_HXX
#define OPENTURNS_LOWDISCREPANCYSEQUENCE_HXX

#include "LowDiscrepancySequenceImplementation.hxx"
#include "Pointer.hxx"
#include "TypedInterfaceObject.hxx"

namespace OpenTURNS
{
  namespace Base
  {
    namespace Stat
    {
      /**
       * @class LowDiscrepancySequence
       */

      class LowDiscrepancySequence :
        public Base::Common::TypedInterfaceObject<LowDiscrepancySequenceImplementation>
      {
        CLASSNAME;

      public:
        typedef LowDiscrepancySequenceImplementation::NumericalPoint  NumericalPoint;
        typedef Common::InvalidArgumentException                      InvalidArgumentException;
        typedef Pointer<LowDiscrepancySequenceImplementation> Implementation;

        /** Default constructor */
        explicit LowDiscrepancySequence();

        /** Constructor with parameters*/
        explicit LowDiscrepancySequence(const UnsignedLong dimension);

        /** Constructor with parameters */
        LowDiscrepancySequence(const LowDiscrepancySequenceImplementation & implementation);

        /** Constructor with parameters */
        LowDiscrepancySequence(Implementation & p_implementation);

        /** Initialize the sequence */
        void initialize(const UnsignedLong dimension);

        /** Dimension accessor */
        UnsignedLong getDimension() const;

        /** Generate a quasi-random vector of numbers uniformly distributed over [0, 1) */
        NumericalPoint generate();

        /** Generate a sample of pseudo-random vectors of numbers uniformly distributed over [0, 1) */
        NumericalSample generate(const UnsignedLong size);

        /** Compute the star discrepancy of a sample uniformly distributed over [0, 1) */
        NumericalScalar computeStarDiscrepancy(const NumericalSample & sample) const;

        /** String converter */
        String __repr__() const;

      }; /* class LowDiscrepancySequence */

    } /* namespace Stat */
  } /* namespace Base */
} /* namespace OpenTURNS */

#endif /* OPENTURNS_LOWDISCREPANCYSEQUENCE_HXX */