MoreEnumerableWindowLeftTSource Method |
Creates a left-aligned sliding window of a given size over the
source sequence.
Namespace: MoreLinq
Assembly: MoreLinq (in MoreLinq.dll) Version: 3.0.0
Syntaxpublic static IEnumerable<IList<TSource>> WindowLeft<TSource>( this IEnumerable<TSource> source, int size )
Parameters
- source
- Type: System.Collections.GenericIEnumerableTSource
The sequence over which to create the sliding window. - size
- Type: SystemInt32
Size of the sliding window.
Type Parameters
- TSource
- The type of the elements of source.
Return Value
Type: IEnumerableIListTSourceA sequence representing each sliding window.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableTSource. 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).RemarksA window can contain fewer elements than size, especially as it slides over the end of the sequence.
This operator uses deferred execution and streams its results.
ExamplesConsole.WriteLine(
Enumerable
.Range(1, 5)
.WindowLeft(3)
.Select(w => "AVG(" + w.ToDelimitedString(",") + ") = " + w.Average())
.ToDelimitedString(Environment.NewLine));
// Output:
// AVG(1,2,3) = 2
// AVG(2,3,4) = 3
// AVG(3,4,5) = 4
// AVG(4,5) = 4.5
// AVG(5) = 5See Also