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.