qtransform_by_min_max example

[wbrenton]

Is there an example of using the qtransform_by_min_max? I'm unsure how to use it without entirely re-implementing the mctx._src.policies.muzero_policy.

[fidlej]

On Go, with reward=-1 for a loss and reward=1 for a win, you can use:

qtransform=functools.partial(mctx.qtransform_by_min_max, min_value=-1.0, max_value=1.0)

I recommend to use the gumbel_muzero_policy with the default qtransform. It works well on many environments.