MongoQueryable.StandardDeviationPopulationAsync Method (IMongoQueryable<Nullable<Double>>, CancellationToken) |
Computes the population standard deviation of a sequence of values.
Namespace: MongoDB.Driver.LinqAssembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.4.1
Syntax public static Task<Nullable<double>> StandardDeviationPopulationAsync(
this IMongoQueryable<Nullable<double>> source,
CancellationToken cancellationToken = null
)
<ExtensionAttribute>
Public Shared Function StandardDeviationPopulationAsync (
source As IMongoQueryable(Of Nullable(Of Double)),
Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Nullable(Of Double))
[<ExtensionAttribute>]
static member StandardDeviationPopulationAsync :
source : IMongoQueryable<Nullable<float>> *
?cancellationToken : CancellationToken
(* Defaults:
let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<Nullable<float>>
Parameters
- source
- Type: MongoDB.Driver.Linq.IMongoQueryable<Nullable<Double>>
A sequence of values to calculate the population standard deviation of. - cancellationToken (Optional)
- Type: System.Threading.CancellationToken
The cancellation token.
Return Value
Type:
Task<Nullable<Double>>
The population standard deviation of the sequence of values.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IMongoQueryable<Nullable<Double>>. 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