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NullPointException with subLearner.setTreeWeight running gradient boosting #6

Open bryan-woods opened 8 years ago

bryan-woods commented 8 years ago

Can someone provide a sample config file for gradient boosting? or better yet a test set that works?

I’ve been trying to run gradient boosting and think that either: 1) I don’t have it configured properly, or 2) there is a bug

I keep getting the following error:

Finished loading datasets. java.lang.NullPointerException at edu.uci.jforests.learning.boosting.GradientBoosting.learn(GradientBoosting.java:105) at edu.uci.jforests.applications.ClassificationApp.run(ClassificationApp.java:244) at edu.uci.jforests.applications.Runner.train(Runner.java:103) at edu.uci.jforests.applications.Runner.main(Runner.java:222)

The error seems to be from trying to set the tree weight with a null.

cmacdonald commented 8 years ago

Gradient Boosting is a meta-learner, i.e. it wraps another learner. What is the learner you are trying to apply gradient boosting to?