mistake found

[fangthu]

hi, thank you for you job. It is very helpful and easy to understand!

But it seems there's a mistake in 'filter_env.py'

The line 'ac_f = np.clip(self.filter_action(action),self.action_space.low,self.action_space.high)'

All the actions are constrained to '-1 to 1' instead of the real inputs.

And another question is : have you ever used XX_bn as the networks ?

In my situation, the result is worse. I do not know it is normal of not .

Best