Hyperopt: simple way to retrieve parameter value (and not index) when using hp.choice

[pierreglaser]

Hello,
So i've been using hyperopt for a while now, and I still cannot figure out a nice way to retrieve the actual parameter value from Trials items.
For example, fmin() returns the argmin dict of the Trials losses. The values stored for each parameter sampled from hp.choice is the index of the choice list.
Is there any way to directly access the parameter value?
Thanks,
Pierre

[th389]

Use space_eval
space_eval(<search_space>, trials.argmin)

Alternatively, you can add the raw parameter values to the results dictionary from your fmin function

[pierreglaser]

thanks a lot, very helpful!

[EgorBu]

Hi,
keep in mind that space_eval has a bug: https://github.com/hyperopt/hyperopt/issues/383