GroupingVariablePartitionT Method

public static Grouping<T> VariablePartition<T>(
	IList<T> index,
	Func<T, T, bool> condition,
	Direction direction = Direction.Forward
)

Public Shared Function VariablePartition(Of T) ( 
	index As IList(Of T),
	condition As Func(Of T, T, Boolean),
	Optional direction As Direction = Direction.Forward
) As Grouping(Of T)

public:
generic<typename T>
static Grouping<T>^ VariablePartition(
	IList<T>^ index, 
	Func<T, T, bool>^ condition, 
	Direction direction = Direction::Forward
)

static member VariablePartition : 
        index : IList<'T> * 
        condition : Func<'T, 'T, bool> * 
        ?direction : Direction 
(* Defaults:
        let _direction = defaultArg direction Direction.Forward
*)
-> Grouping<'T> 

Parameters

index

Type: System.Collections.GenericIListT
The index the grouping is over.

condition

Type: SystemFuncT, T, Boolean
A delegate that indicates whether two keys are in the same window.

direction (Optional)

Type: Extreme.DataAnalysisDirection
The direction in which index is traversed to validate the condition.

Type Parameters

T

Return Value

The extent of each chunk is determined by the first key value and condition. The window is extended as long as condition returns whe applied to the first key and the subsequent keys.

The direction parameter determines whether chunks are created and extended from the beginning (forward) or the end (backward). The grouping is still in the original order even if going backward.

Reference