QuantLib: a free/open-source library for quantitative finance
fully annotated source code - version 1.34
Loading...
Searching...
No Matches
lattice1d.hpp
Go to the documentation of this file.
1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2005 StatPro Italia srl
5
6 This file is part of QuantLib, a free-software/open-source library
7 for financial quantitative analysts and developers - http://quantlib.org/
8
9 QuantLib is free software: you can redistribute it and/or modify it
10 under the terms of the QuantLib license. You should have received a
11 copy of the license along with this program; if not, please email
12 <quantlib-dev@lists.sf.net>. The license is also available online at
13 <http://quantlib.org/license.shtml>.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the license for more details.
18*/
19
20/*! \file lattice1d.hpp
21 \brief One-dimensional lattice class
22*/
23
24#ifndef quantlib_tree_lattice_1d_hpp
25#define quantlib_tree_lattice_1d_hpp
26
28
29namespace QuantLib {
30
31 //! One-dimensional tree-based lattice.
32 /*! Derived classes must implement the following interface:
33 \code
34 Real underlying(Size i, Size index) const;
35 \endcode
36
37 \ingroup lattices */
38 template <class Impl>
39 class TreeLattice1D : public TreeLattice<Impl> {
40 public:
42 : TreeLattice<Impl>(timeGrid,n) {}
43 Array grid(Time t) const override {
44 Size i = this->timeGrid().index(t);
45 Array grid(this->impl().size(i));
46 for (Size j=0; j<grid.size(); j++)
47 grid[j] = this->impl().underlying(i,j);
48 return grid;
49 }
50 Real underlying(Size i, Size index) const {
51 return this->impl().underlying(i,index);
52 }
53 };
54
55}
56
57
58#endif
1-D array used in linear algebra.
Definition: array.hpp:52
Size size() const
dimension of the array
Definition: array.hpp:495
const TimeGrid & timeGrid() const
time grid class
Definition: timegrid.hpp:43
Size index(Time t) const
returns the index i such that grid[i] = t
Definition: timegrid.cpp:43
One-dimensional tree-based lattice.
Definition: lattice1d.hpp:39
TreeLattice1D(const TimeGrid &timeGrid, Size n)
Definition: lattice1d.hpp:41
Real underlying(Size i, Size index) const
Definition: lattice1d.hpp:50
Array grid(Time t) const override
Definition: lattice1d.hpp:43
Tree-based lattice-method base class.
Definition: lattice.hpp:58
const DefaultType & t
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
QL_REAL Real
real number
Definition: types.hpp:50
std::size_t Size
size of a container
Definition: types.hpp:58
Tree-based lattice-method class.
Definition: any.hpp:35