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LSST Data Management Base Package
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Chi2.cc
Go to the documentation of this file.
1// -*- LSST-C++ -*-
2/*
3 * This file is part of jointcal.
4 *
5 * Developed for the LSST Data Management System.
6 * This product includes software developed by the LSST Project
7 * (https://www.lsst.org).
8 * See the COPYRIGHT file at the top-level directory of this distribution
9 * for details of code ownership.
10 *
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <https://www.gnu.org/licenses/>.
23 */
24
25#include <utility>
26#include <iostream>
27
28#include "lsst/jointcal/Chi2.h"
29
30namespace lsst {
31namespace jointcal {
32
34 double sum = 0;
35 double sum2 = 0;
36 for (const auto& i : *this) {
37 sum += i.chi2;
38 sum2 += std::pow(i.chi2, 2);
39 }
40 double average = sum / size();
41 double sigma = sqrt(sum2 / size() - std::pow(average, 2));
42 return std::make_pair(average, sigma);
43}
44
46 s << "chi2 per star : ";
47 for (const auto& chi2 : chi2List) {
48 s << *(chi2.star) << " chi2: " << chi2.chi2 << " ; ";
49 }
50 s << std::endl;
51 return s;
52}
53
54} // namespace jointcal
55} // namespace lsst
Structure to accumulate the chi2 contributions per each star (to help find outliers).
Definition Chi2.h:100
std::pair< double, double > computeAverageAndSigma()
Compute the average and std-deviation of these chisq values.
Definition Chi2.cc:33
T endl(T... args)
T make_pair(T... args)
basic_ostream< char, traits > & operator<<(basic_ostream< char, traits > &, const char *)
T pow(T... args)
Chi2Star size(Chi2Star... args)
T sqrt(T... args)