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ISetWindowFieldsPartitionExtensionsDerivativeTInput Method (ISetWindowFieldsPartitionTInput, FuncTInput, Single, WindowTimeUnit, SetWindowFieldsWindow)

Returns the average rate of change within the specified window.

Namespace:  MongoDB.Driver.Linq
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.18.0+554c799eb1ec8dd732f16c739387f6664df1ba7a
Syntax
public static double Derivative<TInput>(
	this ISetWindowFieldsPartition<TInput> partition,
	Func<TInput, float> selector,
	WindowTimeUnit unit,
	SetWindowFieldsWindow window = null
)

Parameters

partition
Type: MongoDB.DriverISetWindowFieldsPartitionTInput
The partition.
selector
Type: SystemFuncTInput, Single
The selector that selects a value from the input document.
unit
Type: MongoDB.Driver.LinqWindowTimeUnit
The unit for time based derivatives.
window (Optional)
Type: MongoDB.DriverSetWindowFieldsWindow
The window boundaries.

Type Parameters

TInput
The type of the input documents in the partition.

Return Value

Type: Double
The average rate of change within the specified window.

Usage Note

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