OpenMS  2.5.0
LinearRegressionWithoutIntercept.h
Go to the documentation of this file.
1 // --------------------------------------------------------------------------
2 // OpenMS -- Open-Source Mass Spectrometry
3 // --------------------------------------------------------------------------
4 // Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
5 // ETH Zurich, and Freie Universitaet Berlin 2002-2020.
6 //
7 // This software is released under a three-clause BSD license:
8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above copyright
11 // notice, this list of conditions and the following disclaimer in the
12 // documentation and/or other materials provided with the distribution.
13 // * Neither the name of any author or any participating institution
14 // may be used to endorse or promote products derived from this software
15 // without specific prior written permission.
16 // For a full list of authors, refer to the file AUTHORS.
17 // --------------------------------------------------------------------------
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 // ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
22 // INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 //
30 // --------------------------------------------------------------------------
31 // $Maintainer: Lars Nilse $
32 // $Authors: Lars Nilse $
33 // --------------------------------------------------------------------------
34 
35 #pragma once
36 
38 
39 #include <cmath>
40 #include <vector>
41 
42 namespace OpenMS
43 {
44  namespace Math
45  {
52  {
53  public:
54 
57 
64  void addData(double x, double y);
65 
72  void addData(std::vector<double>& x, std::vector<double>& y);
73 
77  double getSlope();
78 
79  private:
83  double sum_xx_;
84 
88  double sum_xy_;
89 
93  int n_;
94 
95  };
96 
97  } // namespace Math
98 } // namespace OpenMS
99 
100 
OpenMS::Math::LinearRegressionWithoutIntercept
This class offers functions to perform least-squares fits to a straight line model,...
Definition: LinearRegressionWithoutIntercept.h:51
OpenMS
Main OpenMS namespace.
Definition: FeatureDeconvolution.h:46
Exception.h
OpenMS::Math::LinearRegressionWithoutIntercept::sum_xy_
double sum_xy_
sum of products
Definition: LinearRegressionWithoutIntercept.h:88
OpenMS::Math::LinearRegressionWithoutIntercept::n_
int n_
number of observations
Definition: LinearRegressionWithoutIntercept.h:93
OpenMS::Math::LinearRegressionWithoutIntercept::sum_xx_
double sum_xx_
total variation in x
Definition: LinearRegressionWithoutIntercept.h:83