1 | #Region "Microsoft.VisualBasic::1211109a06f3a9f66b9347239d1802eb, Microsoft.VisualBasic.Core\Extensions\Math\StatisticsMathExtensions\Average.vb" |
2 | |
3 | ' Author: |
4 | ' |
5 | ' asuka (amethyst.asuka@gcmodeller.org) |
6 | ' xie (genetics@smrucc.org) |
7 | ' xieguigang (xie.guigang@live.com) |
8 | ' |
9 | ' Copyright (c) 2018 GPL3 Licensed |
10 | ' |
11 | ' |
12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
13 | ' |
14 | ' |
15 | ' This program is free software: you can redistribute it and/or modify |
16 | ' it under the terms of the GNU General Public License as published by |
17 | ' the Free Software Foundation, either version 3 of the License, or |
18 | ' (at your option) any later version. |
19 | ' |
20 | ' This program is distributed in the hope that it will be useful, |
21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | ' GNU General Public License for more details. |
24 | ' |
25 | ' You should have received a copy of the GNU General Public License |
26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
27 | |
28 | |
29 | |
30 | ' /********************************************************************************/ |
31 | |
32 | ' Summaries: |
33 | |
34 | ' Class Average |
35 | ' |
36 | ' Properties: Average |
37 | ' |
38 | ' Constructor: (+2 Overloads) Sub New |
39 | ' Function: ToString |
40 | ' Operators: + |
41 | ' |
42 | ' |
43 | ' /********************************************************************************/ |
44 | |
45 | #End Region |
46 | |
47 | Imports System.Runtime.CompilerServices |
48 | |
49 | Namespace Math.Statistics |
50 | |
51 | Public Class Average |
52 | |
53 | Public Sum#, N% |
54 | |
55 | Public ReadOnly Property Average As Double |
56 | <MethodImpl(MethodImplOptions.AggressiveInlining)> |
57 | Get |
58 | Return Sum / N |
59 | End Get |
60 | End Property |
61 | |
62 | Sub New() |
63 | End Sub |
64 | |
65 | Sub New(data As IEnumerable(Of Double)) |
66 | With data.ToArray |
67 | Sum = .Sum |
68 | N = .Length |
69 | End With |
70 | End Sub |
71 | |
72 | Public Overrides Function ToString() As String |
73 | Return $"Means of {N} samples = {Average}" |
74 | End Function |
75 | |
76 | Public Shared Operator +(avg As Average, x#) As Average |
77 | avg.Sum += x |
78 | avg.N += 1 |
79 | Return avg |
80 | End Operator |
81 | |
82 | Public Shared Widening Operator CType(avg As Double) As Average |
83 | Return New Average() + avg |
84 | End Operator |
85 | End Class |
86 | End Namespace |