MiningStructure.HoldoutSeed 屬性
Gets or sets the seed used to initialize partitioning of the MiningStructure into training and testing data sets.
命名空間： Microsoft.AnalysisServices
組件： Microsoft.AnalysisServices (在 Microsoft.AnalysisServices.dll 中)
語法
'宣告
Public Property HoldoutSeed As Long
Get
Set
'用途
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)
屬性值
型別：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.
備註
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.
[!附註]
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.