SvmLightLoaderSaverCatalog.SaveInSvmLightFormat Method

Definition

Namespace:

Microsoft.ML.Data

Assembly:

Microsoft.ML.Transforms.dll

Package:

Microsoft.ML v3.0.1

Save the IDataView in SVM-light format. Four columns can be saved: a label and a features column, and optionally a group ID column and an example weight column.

public static void SaveInSvmLightFormat (this Microsoft.ML.DataOperationsCatalog catalog, Microsoft.ML.IDataView data, System.IO.Stream stream, bool zeroBasedIndexing = false, bool binaryLabel = false, string labelColumnName = "Label", string featureColumnName = "Features", string rowGroupColumnName = default, string exampleWeightColumnName = default);

static member SaveInSvmLightFormat : Microsoft.ML.DataOperationsCatalog * Microsoft.ML.IDataView * System.IO.Stream * bool * bool * string * string * string * string -> unit

<Extension()>
Public Sub SaveInSvmLightFormat (catalog As DataOperationsCatalog, data As IDataView, stream As Stream, Optional zeroBasedIndexing As Boolean = false, Optional binaryLabel As Boolean = false, Optional labelColumnName As String = "Label", Optional featureColumnName As String = "Features", Optional rowGroupColumnName As String = Nothing, Optional exampleWeightColumnName As String = Nothing)

Parameters

catalog

DataOperationsCatalog

The DataOperationsCatalog catalog.

data

IDataView

The data view to save.

stream

Stream

The stream to write to.

zeroBasedIndexing

Boolean

Whether to index the features starting at 0 or at 1.

binaryLabel

Boolean

If set to true, saves 1 for positive labels, -1 for non-positive labels and 0 for NaN. Otherwise, saves the value of the label in the data view.

labelColumnName

String

The name of the column to be saved as the label column.

featureColumnName

String

The name of the column to be saved as the features column.

rowGroupColumnName

String

The name of the column to be saved as the group ID column. If null, a group ID column will not be saved.

exampleWeightColumnName

String

The name of the column to be saved as the weight column. If null, a weight column will not be saved.