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QueryableExtensionMethods.Variance<TSource, TColumnType> Method (IQueryable<TSource>, Expression<Func<TSource, TColumnType>>, Boolean)
returns the variance over the column specified by selector.

Namespace:  SD.LLBLGen.Pro.LinqSupportClasses
Assembly:  SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.2.0.0 (5.2.17.0403)
Syntax
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public static double Variance<TSource, TColumnType>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, TColumnType>> selector,
	bool applyDistinct
)

Parameters

source
Type: System.Linq.IQueryable<TSource>
The source.
selector
Type: System.Linq.Expressions.Expression<Func<TSource, TColumnType>>
The selector.
applyDistinct
Type: System.Boolean
if set to true, DISTINCT is applied on the set the variance is applied on

Type Parameters

TSource
The type of the source.
TColumnType
The type of the column type.

Return Value

Type: Double
The variance over the values (distinct values if applyDistinct is true) in the column specified by selector.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryable<TSource>. 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