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BoosterParameterBase.OptionsBase.SubsampleFraction Field

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Definition

Namespace:
Microsoft.ML.Trainers.LightGbm
Assembly:
Microsoft.ML.LightGbm.dll
Package:
Microsoft.ML.LightGbm v3.0.1
Package:
Microsoft.ML.LightGbm v1.0.0
Package:
Microsoft.ML.LightGbm v1.1.0
Package:
Microsoft.ML.LightGbm v1.2.0
Package:
Microsoft.ML.LightGbm v1.3.1
Package:
Microsoft.ML.LightGbm v1.4.0
Package:
Microsoft.ML.LightGbm v1.5.5
Package:
Microsoft.ML.LightGbm v1.6.0
Package:
Microsoft.ML.LightGbm v1.7.0
Package:
Microsoft.ML.LightGbm v2.0.0

The fraction of training data used for creating trees.

public double SubsampleFraction;
val mutable SubsampleFraction : double
Public SubsampleFraction As Double

Field Value

Double

Setting it to 0.5 means that LightGBM randomly picks half of the data points to grow trees. This can be used to speed up training and to reduce over-fitting. Valid range is (0,1].

Applies to