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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

 Copyright (C) 2006 Joseph Wang

 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at

 This program 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 license for more details.

/*! \file volatilitymodel.hpp
    \brief Volatility term structures

#ifndef quantlib_volatility_model_hpp
#define quantlib_volatility_model_hpp

#include <ql/types.hpp>
#include <ql/timeseries.hpp>

namespace QuantLib {

    template <class T>
00034     class LocalVolatilityEstimator {
        virtual ~LocalVolatilityEstimator() {}
        virtual TimeSeries<Volatility>
        calculate(const TimeSeries<T> &quoteSeries) = 0;

00041     class VolatilityCompositor {
        virtual ~VolatilityCompositor() {}
        virtual TimeSeries<Volatility>
        calculate(const TimeSeries<Volatility>& volatilitySeries) = 0;
        virtual void calibrate(const TimeSeries<Volatility>& volatilitySeries) = 0;



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