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minimize.h
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1// -*- LSST-C++ -*-
2
3/*
4 * LSST Data Management System
5 * Copyright 2008, 2009, 2010 LSST Corporation.
6 *
7 * This product includes software developed by the
8 * LSST Project (http://www.lsst.org/).
9 *
10 * This program is free software: you can redistribute it and/or modify
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24
25#ifndef LSST_AFW_MATH_MINIMIZE_H
26#define LSST_AFW_MATH_MINIMIZE_H
27/*
28 * Adaptor for minuit
29 *
30 * Class that Minuit knows how to minimize, that contains an lsst::afw::math::Function
31 */
32#include <memory>
33#include "Minuit2/FCNBase.h"
34
36
37namespace lsst {
38namespace afw {
39namespace math {
40
52
75template <typename ReturnT>
77 std::vector<double> const &initialParameterList, std::vector<double> const &stepSizeList,
78 std::vector<double> const &measurementList, std::vector<double> const &varianceList,
79 std::vector<double> const &xPositionList, double errorDef);
80
104template <typename ReturnT>
106 std::vector<double> const &initialParameterList, std::vector<double> const &stepSizeList,
107 std::vector<double> const &measurementList, std::vector<double> const &varianceList,
108 std::vector<double> const &xPositionList, std::vector<double> const &yPositionList,
109 double errorDef);
110} // namespace math
111} // namespace afw
112} // namespace lsst
113
114#endif // !defined(LSST_AFW_MATH_MINIMIZE_H)
A Function taking one argument.
Definition Function.h:202
A Function taking two arguments.
Definition Function.h:259
FitResults minimize(lsst::afw::math::Function1< ReturnT > const &function, std::vector< double > const &initialParameterList, std::vector< double > const &stepSizeList, std::vector< double > const &measurementList, std::vector< double > const &varianceList, std::vector< double > const &xPositionList, double errorDef)
Find the minimum of a function(x)
Definition minimize.cc:176
Results from minimizing a function.
Definition minimize.h:44
std::vector< double > parameterList
fit parameters
Definition minimize.h:48
bool isValid
true if the fit converged; false otherwise
Definition minimize.h:46
double chiSq
chi squared; may be nan or infinite, but only if isValid false
Definition minimize.h:47
std::vector< std::pair< double, double > > parameterErrorList
negative,positive (1 sigma?) error for each parameter
Definition minimize.h:50