ColumnInformation.SamplingKeyColumnName Property
Definition
Important
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Gets or sets the dataset column to use for grouping rows.
public string SamplingKeyColumnName { get; set; }member this.SamplingKeyColumnName : string with get, setPublic Property SamplingKeyColumnName As StringProperty Value
Remarks
If two examples share the same sampling key column name, they are guaranteed to appear in the same subset (train or test). This can be used to ensure no label leakage from the train to the test set. If null, no row grouping will be performed.