IDataView.GetRowCursor Method

Definition

Namespace:

Microsoft.ML

Assembly:

Microsoft.ML.DataView.dll

Package:

Microsoft.ML.DataView v3.0.1

Get a row cursor. The columnsNeeded indicate the active columns that are needed to iterate over. If set to an empty IEnumerable no column is requested. The schema of the returned cursor will be the same as the schema of the IDataView, but getting a getter for inactive columns will throw.

public Microsoft.ML.DataViewRowCursor GetRowCursor (System.Collections.Generic.IEnumerable<Microsoft.ML.DataViewSchema.Column> columnsNeeded, Random rand = default);

abstract member GetRowCursor : seq<Microsoft.ML.DataViewSchema.Column> * Random -> Microsoft.ML.DataViewRowCursor

Public Function GetRowCursor (columnsNeeded As IEnumerable(Of DataViewSchema.Column), Optional rand As Random = Nothing) As DataViewRowCursor

Parameters

columnsNeeded

IEnumerable<DataViewSchema.Column>

The active columns needed. If passed an empty IEnumerable no column is requested.

rand

Random

An instance of Random to seed randomizing the access for a shuffled cursor.

Returns

DataViewRowCursor