Propriété MiningStructure.HoldoutSeed

Gets or sets the seed used to initialize partitioning of the MiningStructure into training and testing data sets.

Espace de noms :  Microsoft.AnalysisServices
Assembly :  Microsoft.AnalysisServices (en Microsoft.AnalysisServices.dll)

Syntaxe

'Déclaration
Public Property HoldoutSeed As Long 
    Get 
    Set
'Utilisation
Dim instance As MiningStructure 
Dim value As Long 

value = instance.HoldoutSeed

instance.HoldoutSeed = value

public long HoldoutSeed { get; set; }

public:
property long long HoldoutSeed {
    long long get ();
    void set (long long value);
}

member HoldoutSeed : int64 with get, set

function get HoldoutSeed () : long 
function set HoldoutSeed (value : long)

Valeur de propriété

Type : System.Int64
An integer that contains the holdout seed. If 0, a hash of the ID of the MiningStructure is used as the seed. The default value is 0.

Notes

Partitioning is random and data dependent. To ensure that a particular partition can be repeated, you must specify a seed.

Note   To enable creation of a testing data set, the CacheMode property of the mining structure must be set to the default value, KeepTrainingCases.

[!REMARQUE]

SQL Server 2005 does not support creation of holdout partitions on a mining structure. You cannot use HoldoutSeed with a mining structure that is stored in an instance of SQL Server 2005 Analysis Services.

Voir aussi

Référence

MiningStructure Classe

Espace de noms Microsoft.AnalysisServices