DryadLinqQueryable.SumAsQuery Method (IQueryable(Nullable(Double)))

DryadLinqQueryableSumAsQuery Method (IQueryableNullableDouble)

DryadLINQ documentation

Same as Sum(IQueryableNullableDouble), but returns an IQueryable<Nullable<Double>> containing a single element. Computes the sum of a set of nullable double values.

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<Nullable<double>> SumAsQuery(
	this IQueryable<Nullable<double>> source
)

<ExtensionAttribute> 
Public Shared Function SumAsQuery ( 
	source As IQueryable(Of Nullable(Of Double))
) As IQueryable(Of Nullable(Of Double))

public:
[ExtensionAttribute]
static IQueryable<Nullable<double>>^ SumAsQuery(
	IQueryable<Nullable<double>>^ source
)

Parameters

source: Type: System.LinqIQueryableNullableDouble
A dataset of nullable double values to calculate the sum of

Return Value

Type: IQueryableNullableDouble
The sum of the values in the dataset

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableNullableDouble. 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

SumAsQuery Overload

Microsoft.Research.DryadLinq Namespace