• Skip to primary navigation
  • Skip to content
  • Skip to footer
Numerics.NET
Try Free Buy Now Find Anything Sign In Account
  • Welcome
  • .NET Libraries
  • Write Great Code
  • 30 Day Free Trial
  • Pricing
  • Your account
  • QuickStart Samples
  • Nuget Packages
  • Documentation
    • Latest
      • 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
        • Numerics.NET
        • Numerics.NET.Algorithms
        • Numerics.NET.Calculus
        • Numerics.NET.Calculus.Generic
        • Numerics.NET.Calculus.OrdinaryDifferentialEquations
        • Numerics.NET.Collections
        • Numerics.NET.Curves
        • Numerics.NET.Curves.Generic
        • Numerics.NET.Curves.Nonlinear
        • Numerics.NET.Data
        • Numerics.NET.Data.Json
        • Numerics.NET.Data.Matlab
        • Numerics.NET.Data.R
        • Numerics.NET.Data.Stata
        • Numerics.NET.Data.Text
        • Numerics.NET.DataAnalysis
        • Numerics.NET.DataAnalysis.Accumulators
        • Numerics.NET.DataAnalysis.Linq
          • LinqExtensions
          • LinqExtensions.DataFrameGrouping<TKey, R, C>
          • LinqExtensions.DataFrameLookup<TKey, R, C>
            • Constructor
            • Properties
              • Count
              • Item
            • Methods
          • LinqExtensions.Grouping<TKey, T>
          • LinqExtensions.Lookup<TKey, T>
        • Numerics.NET.DataAnalysis.Models
        • Numerics.NET.Distributed
        • Numerics.NET.EquationSolvers
        • Numerics.NET.EquationSolvers.Generic
        • Numerics.NET.Generic
        • Numerics.NET.LinearAlgebra
        • Numerics.NET.LinearAlgebra.Implementation
        • Numerics.NET.LinearAlgebra.IterativeSolvers
        • Numerics.NET.LinearAlgebra.IterativeSolvers.Preconditioners
        • Numerics.NET.Optimization
        • Numerics.NET.Optimization.LineSearches
        • Numerics.NET.Providers
        • Numerics.NET.Providers.InteropServices
        • Numerics.NET.Random
        • Numerics.NET.SignalProcessing
        • Numerics.NET.Statistics
        • Numerics.NET.Statistics.Distributions
        • Numerics.NET.Statistics.Multivariate
        • Numerics.NET.Statistics.Tests
        • Numerics.NET.Statistics.TimeSeriesAnalysis
        • Numerics.NET.Tensors
    • What's New
    • In depth: Tensors
  • Contact Us
  • Blog
  1. Home
  2. Documentation
  3. Latest
  4. Reference
  5. Numerics.NET.DataAnalysis.Linq
  6. LinqExtensions.DataFrameLookup<TKey, R, C>
  7. Properties
C# Visual Basic C++/CLI F#

DataFrameLookup<TKey, R, C> Properties

On this page

  • Properties
  • See Also

Properties

Count Gets the number of key/value collection pairs.
Item Gets the sequence of values indexed by the specified key.

See Also

Reference

LinqExtensions.DataFrameLookup<TKey, R, C> Class
Numerics.NET.DataAnalysis.Linq Namespace
On this page
  • Properties
  • See Also
Copyright © 2003-2024, Extreme Optimization. All rights reserved.
Numerics.NET, Extreme Optimization, Complexity made simple, M#, and M Sharp are trademarks of ExoAnalytics Inc.
Microsoft, C#, Visual Basic, Visual Studio, and the Optimized for Visual Studio logo
are registered trademarks of Microsoft Corporation.