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Throw more informative error message if CmaEsSampler is used with categorical variables

See original GitHub issue

Currently, if CmaEsSampler is used with categorical variables, it throws this error

The parameter 'x' in trial#1 is sampled independently by using `RandomSampler` instead of `CmaEsSampler` (optimization performance may be degraded). You can suppress this warning by setting `warn_independent_sampling` to `False` in the constructor of `CmaEsSampler`, if this independent sampling is intended behavior.

As somebody who isn’t familiar with the details of CmaEsSampler, I was not aware that it didn’t work with categorical variables, and thought it was an issue with how I was setting the parameter ranges

If the CmaEsSampler is called with categorical variables, it should probably throw an error/warning upfront explaining the issue.

Issue Analytics

State:
Created 3 years ago
Comments:6 (5 by maintainers)

Top GitHub Comments

1reaction

c-batacommented, Nov 17, 2020

Resolved at #2019. @norihitoishida Thank you for your contribution 👍

1reaction

norihitoishidacommented, Oct 15, 2020

I’ll work on this

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