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BoosterParameterBase.OptionsBase.FeatureFraction Field

  • Reference

Definition

Namespace:
Microsoft.ML.Trainers.LightGbm
Assembly:
Microsoft.ML.LightGbm.dll
Package:
Microsoft.ML.LightGbm v4.0.1
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 v2.0.1
Package:
Microsoft.ML.LightGbm v3.0.1
Package:
Microsoft.ML.LightGbm v5.0.0-preview.1.25125.4
Source:
LightGbmArguments.cs
Source:
LightGbmArguments.cs
Source:
LightGbmArguments.cs

The fraction of features used when creating trees.

C# 
public double FeatureFraction;

Field Value

Double

If FeatureFraction is smaller than 1.0, LightGBM will randomly select fraction of features to train each tree. For example, if you set it to 0.8, LightGBM will select 80% of features before training each tree. This can be used to speed up training and to reduce over-fitting. Valid range is (0,1].

Applies to

Product Versions
ML.NET 1.0.0, 1.1.0, 1.2.0, 1.3.1, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 2.0.0, 3.0.0, 4.0.0, Preview