DryadLinqQueryable.AverageAsQuery(TSource) Method (IQueryable(TSource), Expression(Func(TSource, Int32)))

DryadLinqQueryableAverageAsQueryTSource Method (IQueryableTSource, ExpressionFuncTSource, Int32)

DryadLINQ documentation

Same as AverageTSource(IQueryableTSource, ExpressionFuncTSource, Int32), but returns an IQueryable<Double> containing a single element. Computes the average of a set of Int32 values that is obtained by applying a function to each element of the input dataset.

Namespace: Microsoft.Research.DryadLinq
Assembly: Microsoft.Research.DryadLinq (in Microsoft.Research.DryadLinq.dll) Version: 0.2.1.0 (0.2.1.0)

Syntax

C++

Copy

public static IQueryable<double> AverageAsQuery<TSource>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, int>> selector
)

<ExtensionAttribute> 
Public Shared Function AverageAsQuery(Of TSource) ( 
	source As IQueryable(Of TSource),
	selector As Expression(Of Func(Of TSource, Integer))
) As IQueryable(Of Double)

public:
[ExtensionAttribute]
generic<typename TSource>
static IQueryable<double>^ AverageAsQuery(
	IQueryable<TSource>^ source, 
	Expression<Func<TSource, int>^>^ selector
)

Parameters

source: Type: System.LinqIQueryableTSource
The input dataset
selector: Type: System.Linq.ExpressionsExpressionFuncTSource, Int32
A transformation function to apply to each element

Type Parameters

TSource: The type of the elements of source

Return Value

Type: IQueryableDouble
The average of the values after applying the transformation function

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Reference

DryadLinqQueryable Class

AverageAsQuery Overload

Microsoft.Research.DryadLinq Namespace