Xgboost: This may not be accurate due to some parameters are only used in language bindings but passed down to XGBoost core. Or some parameters are not used but slip through this verification. Please open an issue if you find above cases.

[SimZhou]

Basically I moved everything to my Linux (centos 8) server, then this pops out:

(There is no such warnings when I run it on my windows laptop)

However, the param verbose_eval seems to be working right...

[hcho3]

The verbose_eval belongs to the Python function call xgb.train(), not in the param dictionary. See the doc for xgb.train(): https://xgboost.readthedocs.io/en/latest/python/python_api.html#xgboost.train

[SimZhou]

The verbose_eval belongs to the Python function call xgb.train(), not in the param dictionary. See the doc for xgb.train(): https://xgboost.readthedocs.io/en/latest/python/python_api.html#xgboost.train

Oh that's it! thx for blustering fast reply haha.

[trivialfis]

@hcho3 So far the parameters validation has been working well, do you think it's time for us to drop the experimental tag?

[hcho3]

@trivialfis Yes, we can drop the experimental tag. Thanks for implementing it. It is one of the best major improvements we made in user experience recently.

[trivialfis]

Thanks, let me submit a PR next week.