MongoQueryable.StandardDeviationSampleAsync(TSource) Method (IMongoQueryable(TSource), Expression(Func(TSource, Int32)), CancellationToken) (original) (raw)
MongoQueryableStandardDeviationSampleAsyncTSource Method (IMongoQueryableTSource, ExpressionFuncTSource, Int32, CancellationToken)
Computes the sample standard deviation of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Namespace: MongoDB.Driver.Linq
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.10.0+569905ff5e778c38ea19d9d0392496a83e1704ed
Syntax
public static Task StandardDeviationSampleAsync( this IMongoQueryable source, Expression<Func<TSource, int>> selector, CancellationToken cancellationToken = null )
Public Shared Function StandardDeviationSampleAsync(Of TSource) ( source As IMongoQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Integer)), Optional cancellationToken As CancellationToken = Nothing ) As Task(Of Double)[] static member StandardDeviationSampleAsync : source : IMongoQueryable<'TSource> * selector : Expression<Func<'TSource, int>> * ?cancellationToken : CancellationToken (* Defaults: let _cancellationToken = defaultArg cancellationToken null *) -> Task
Parameters
source
Type: MongoDB.Driver.LinqIMongoQueryableTSource
A sequence of values to calculate the population standard deviation of.
selector
Type: System.Linq.ExpressionsExpressionFuncTSource, Int32
A transform function to apply to each element.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.
Type Parameters
TSource
The type of the elements of source.
Return Value
Type: TaskDouble
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 IMongoQueryableTSource. 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