106 lines
2.9 KiB
VB.net
106 lines
2.9 KiB
VB.net
#Region "Microsoft.VisualBasic::5111f0c69fb580eeca22b6f2dd77136e, Microsoft.VisualBasic.Core\Extensions\Math\StatisticsMathExtensions\Average.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Class Average
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'
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' Properties: Average
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'
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' Constructor: (+2 Overloads) Sub New
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'
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' Function: getEigenvalue, ToString
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'
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' Sub: addObservation
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'
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' Operators: +
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'
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'
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' /********************************************************************************/
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#End Region
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Imports System.Runtime.CompilerServices
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Namespace Math.Statistics
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Public Class Average : Inherits SampleObservation
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Public Sum#, N%
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Public ReadOnly Property Average As Double
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<MethodImpl(MethodImplOptions.AggressiveInlining)>
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Get
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If N = 0 Then
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Return 0
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Else
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Return Sum / N
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End If
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End Get
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End Property
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Sub New()
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Call Me.New({})
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End Sub
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Sub New(data As IEnumerable(Of Double))
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Call MyBase.New(data)
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With getRaw.ToArray
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Sum = .Sum
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N = .Length
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End With
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End Sub
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Public Overrides Function ToString() As String
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Return $"Means of {N} samples = {Average}"
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End Function
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Public Shared Operator +(avg As Average, x#) As Average
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Call avg.Add(x)
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Return avg
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End Operator
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Public Shared Widening Operator CType(avg As Double) As Average
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Return New Average() + avg
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End Operator
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Protected Overrides Sub addObservation(observation As Double)
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Sum += observation
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N += 1
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End Sub
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Protected Overrides Function getEigenvalue() As Double
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Return Average
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End Function
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End Class
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End Namespace
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