• Extreme Optimization
  • Features
  • Solutions
  • Documentation
  • QuickStart Samples
  • Sample Applications
  • Downloads
  • Technical Support
  • Download trial
  • How to buy
  • Blog
  • Company
  • Resources
• Documentation
  • Introduction
  • Deployment Guide
  • Nuget packages
  • Configuration
  • Using Parallelism
  • Mathematics Library User's Guide
  • Vector and Matrix Library User's Guide
  • Data Analysis Library User's Guide
  • Statistics Library User's Guide
  • Data Access Library User's Guide
  • Reference
• Reference
  • Extreme
  • Extreme.Collections
  • Extreme.Data
  • Extreme.Data.Json
  • Extreme.Data.Matlab
  • Extreme.Data.R
  • Extreme.Data.Stata
  • Extreme.Data.Text
  • Extreme.DataAnalysis
  • Extreme.DataAnalysis.Linq
  • Extreme.DataAnalysis.Models
  • Extreme.Mathematics
  • Extreme.Mathematics.Algorithms
  • Extreme.Mathematics.Calculus
  • Extreme.Mathematics.Calculus.OrdinaryDifferentialEquations
  • Extreme.Mathematics.Curves
  • Extreme.Mathematics.Curves.Nonlinear
  • Extreme.Mathematics.Distributed
  • Extreme.Mathematics.EquationSolvers
  • Extreme.Mathematics.Generic
  • Extreme.Mathematics.LinearAlgebra
  • Extreme.Mathematics.LinearAlgebra.Implementation
  • Extreme.Mathematics.LinearAlgebra.IterativeSolvers
  • Extreme.Mathematics.LinearAlgebra.IterativeSolvers.Preconditioners
  • Extreme.Mathematics.Optimization
  • Extreme.Mathematics.Optimization.LineSearches
  • Extreme.Mathematics.Random
  • Extreme.Mathematics.SignalProcessing
  • Extreme.Providers
  • Extreme.Providers.InteropServices
  • Extreme.Statistics
  • Extreme.Statistics.Distributions
  • Extreme.Statistics.Multivariate
  • Extreme.Statistics.Tests
  • Extreme.Statistics.TimeSeriesAnalysis
• Extreme.DataAnalysis
  • Accumulator(T, U) Class
  • Aggregator(T, U) Class
  • Aggregator2(T, U) Class
  • Aggregator2Group Class
  • Aggregator2Group(T) Class
  • AggregatorGroup Class
  • AggregatorGroup(T) Class
  • Aggregators Class
  • BoundaryIntervalBehavior Enumeration
  • CategoricalEncoding Class
  • DataFrame Class
  • DataFrame(R, C) Class
  • DataFrameRow(R, C) Class
  • DateTimeExtensions Class
  • DateTimeUnit Enumeration
  • Direction Enumeration
  • Grouping Class
  • Grouping(TKey) Class
  • Histogram Class
  • Histogram(T) Class
  • IAccumulator(T, U) Interface
  • IAccumulator2(T, U) Interface
  • IAccumulator2(T, U, V) Interface
  • IAggregator Interface
  • IAggregator(T) Interface
  • IAggregator2 Interface
  • IAggregator2(T) Interface
  • IDataFrame Interface
  • IGrouping Interface
  • IIndex Interface
  • Index Class
  • Index(T) Class
  • IntervalIndex(T) Class
  • IPivot Interface
  • JoinIndex Class
  • JoinType Enumeration
  • MissingValueAction Enumeration
  • MissingValueException Class
  • MultipleMissingValueAction Enumeration
  • Parameter(T) Class
  • ParameterVector(T) Class
  • Pivot Class
  • Pivot(R, C) Class
  • RankTiebreaker Enumeration
  • Recurrence Class
  • SortOrder Enumeration
  • SpecialBins Enumeration
  • Subset Class
  • TransformedParameter(T) Class
  • TypePreservingAggregatorGroup Class
  • VectorExtensions Class
• JoinIndex Class
  • Properties
  • Methods

JoinIndex Class

Extreme Optimization Numerical Libraries for .NET Professional

Represents a set of one or more columns that can serve as a key in a join operation.

Inheritance Hierarchy

---

SystemObject
  Extreme.DataAnalysisJoinIndex

Namespace:  Extreme.DataAnalysis
Assembly:  Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.1

Syntax

---

C#

VB

C++

F#

Copy

public class JoinIndex

Public Class JoinIndex

public ref class JoinIndex

type JoinIndex =  class end

The JoinIndex type exposes the following members.

Properties

---

	Name	Description
	ColumnCount	Gets the number of columns in the join index.
	IsUnique	Gets whether the join index contains unique values.

Top

Methods

---

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	FromIndexT	Creates a join index from an index.
	FromVectors	Creates a join index from a sequence of vectors.
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Top

See Also

---

Reference

Extreme.DataAnalysis Namespace

Copyright © 2004-2021, Extreme Optimization. All rights reserved.
Extreme Optimization, Complexity made simple, M#, and M Sharp are trademarks of ExoAnalytics Inc.
Microsoft, Visual C#, Visual Basic, Visual Studio, Visual Studio.NET, and the Optimized for Visual Studio logo
are registered trademarks of Microsoft Corporation.