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is lightGBM custom eval metric usage possible?

See original GitHub issue

Hi,

Is a custom eval metric function usable with Optuna?

As the eval metric argument of LightGBMPruningCallback type is a string, I can’t make it work.

Thanks and keep the good work!

Issue Analytics

State:
Created 4 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

2reactions

smlycommented, Jan 30, 2020

Hi @flamby,

Thanks for the good question! I wrote an example code to use a custom metric function with Optuna. https://gist.github.com/smly/5a5ddf968d59492b79e4cbf90b2d3430

Hope this code helps to solve your problem.

1reaction

flambycommented, Jan 30, 2020

Thanks for the clarification @smly

and keep the good work!

closing then.

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