CondensedCollectionExtensionsAverage Method (CondensedCollectionNullableSingle)

[This is preliminary documentation and is subject to change.]

Computes the average of a sequence of nullable float values. Optimized for a CondensedCollection.

Namespace: Condensed.Linq
Assembly: Condensed (in Condensed.dll) Version: 0.1.0.0 (0.1.0.0)

Syntax

public static Nullable<float> Average(
	this CondensedCollection<Nullable<float>> source
)

<ExtensionAttribute>
Public Shared Function Average ( 
	source As CondensedCollection(Of Nullable(Of Single))
) As Nullable(Of Single)

public:
[ExtensionAttribute]
static Nullable<float> Average(
	CondensedCollection<Nullable<float>>^ source
)

[<ExtensionAttribute>]
static member Average : 
        source : CondensedCollection<Nullable<float32>> -> Nullable<float32>

Parameters

source: Type: CondensedCondensedCollectionNullableSingle
A CondensedCollection of nullable float values to calculate the average of.

Return Value

Type: NullableSingle
The average of the sequence of values, or null if the source sequence is empty or contains only values that are null.

Usage Note

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

Exceptions

Exception	Condition
ArgumentNullException	source is null

Remarks

This implementation of Average() is specialized for a CondensedCollection and tries to take advantage of the CondensedCollection's knowledge of unique values in order to improve performance. If you would rather use the normal LINQ extension method then cast the CondensedCollection to an IListT to use the Average(IEnumerableNullableSingle) implementation.

Reference

CondensedCollectionExtensions Class

Average Overload

Condensed.Linq Namespace