docs: Update LightGBM API examples to use modern callbacks#2100
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ayushozha wants to merge 1 commit intomicrosoft:mainfrom
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docs: Update LightGBM API examples to use modern callbacks#2100ayushozha wants to merge 1 commit intomicrosoft:mainfrom
ayushozha wants to merge 1 commit intomicrosoft:mainfrom
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Update the Custom Model Integration documentation to use the modern callback-based API for LightGBM instead of the deprecated parameters. The deprecated parameters (early_stopping_rounds, verbose_eval, evals_result) were removed in LightGBM 4.0 and now cause errors: "train() got an unexpected keyword argument 'early_stopping_rounds'" Changes: - Replace deprecated early_stopping_rounds with lgb.early_stopping() - Replace deprecated verbose_eval with lgb.log_evaluation() - Replace deprecated evals_result with lgb.record_evaluation() - Add comments explaining the callback requirement for LightGBM >= 4.0 Fixes microsoft#904
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Summary
early_stopping_rounds,verbose_eval,evals_result) were removed in LightGBM 4.0 and now cause errorsProblem
Users following the documentation would get:
Solution
Replace deprecated parameters with callbacks:
early_stopping_rounds→lgb.early_stopping()verbose_eval→lgb.log_evaluation()evals_result→lgb.record_evaluation()Test plan
qlib/contrib/model/gbdt.pyFixes #904