EdmFunctions.StDev(DbExpression) Method

Definition

Creates a DbFunctionExpression that invokes the canonical 'StDev' function over the non-null members of the specified collection. The result type of the expression is Edm.Double.

public static System.Data.Common.CommandTrees.DbFunctionExpression StDev (this System.Data.Common.CommandTrees.DbExpression collection);

Parameters

collection
DbExpression

An expression that specifies the collection for which the standard deviation should be computed.

Returns

A new DbFunctionExpression that produces the standard deviation value over non-null members of the collection.

Exceptions

collection is null.

collection is invalid.

Applies to

Product Versies
.NET Framework 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1