ParallelEnumerable.Average Method (ParallelQuery<Nullable<Int32>>)
Computes in parallel the average of a sequence of values.
Assembly: System.Core (in System.Core.dll)
public static Nullable<double> Average( this ParallelQuery<Nullable<int>> source )
Usage NoteIn Visual Basic and C#, you can call this method as an instance method on any object of type ParallelQuery<Nullable<Int32>>. 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).
The query was canceled with the token passed in through WithCancellation.
source is a null reference (Nothing in Visual Basic).
The sum or count of the elements in the sequence is larger than MaxValue. -or- One or more exceptions occurred during the evaluation of the query.
source contains no elements.