EdmFunctions.StDev(DbExpression) Method
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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:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbFunctionExpression ^ StDev(System::Data::Common::CommandTrees::DbExpression ^ collection);
public static System.Data.Common.CommandTrees.DbFunctionExpression StDev (this System.Data.Common.CommandTrees.DbExpression collection);
static member StDev : System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function StDev (collection As DbExpression) As DbFunctionExpression
- collection
- DbExpression
An expression that specifies the collection for which the standard deviation should be computed.
A new DbFunctionExpression that produces the standard deviation value over non-null members of the collection.
collection
is null
.
collection
is invalid.
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 |
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