MongoQueryableStandardDeviationSampleAsync Method (IMongoQueryableNullableDouble, CancellationToken) |
Computes the sample standard deviation of a sequence of values.
Namespace:
MongoDB.Driver.Linq
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.12.2+a4a3888f4fb51bb518b1eb5002effc2d47f2ea6a
Syntax public static Task<Nullable<double>> StandardDeviationSampleAsync(
this IMongoQueryable<Nullable<double>> source,
CancellationToken cancellationToken = null
)
<ExtensionAttribute>
Public Shared Function StandardDeviationSampleAsync (
source As IMongoQueryable(Of Nullable(Of Double)),
Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Nullable(Of Double))
[<ExtensionAttribute>]
static member StandardDeviationSampleAsync :
source : IMongoQueryable<Nullable<float>> *
?cancellationToken : CancellationToken
(* Defaults:
let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<Nullable<float>>
Parameters
- source
- Type: MongoDB.Driver.LinqIMongoQueryableNullableDouble
A sequence of values to calculate the population standard deviation of. - cancellationToken (Optional)
- Type: System.ThreadingCancellationToken
The cancellation token.
Return Value
Type:
TaskNullableDouble
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
IMongoQueryableNullableDouble. 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