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Fix PPO logging of clip_fractions (#150)

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* bugfix for PPO logging of clip_fractions

* Update changelog.rst

Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
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Vsevolod Kompantsev 2020-09-01 10:52:31 +03:00 committed by GitHub
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2
docs/misc/changelog.rst
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@ -18,6 +18,7 @@ New Features:
Bug Fixes:
^^^^^^^^^^
- Fixed a bug where the environment was reset twice when using ``evaluate_policy``
- Fix logging of ``clip_fraction`` in PPO (@diditforlulz273)
Deprecations:
^^^^^^^^^^^^^
@ -398,3 +399,4 @@ And all the contributors:
@MarvineGothic @jdossgollin @SyllogismRXS @rusu24edward @jbulow @Antymon @seheevic @justinkterry @edbeeching
@flodorner @KuKuXia @NeoExtended @PartiallyTyped @mmcenta @richardwu @kinalmehta @rolandgvc @tkelestemur @mloo3
@tirafesi @blurLake @koulakis @joeljosephjin @shwang @rk37 @andyshih12 @RaphaelWag @xicocaio
@diditforlulz273

2
stable_baselines3/ppo/ppo.py
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@ -228,7 +228,7 @@ class PPO(OnPolicyAlgorithm):
logger.record("train/policy_gradient_loss", np.mean(pg_losses))
logger.record("train/value_loss", np.mean(value_losses))
logger.record("train/approx_kl", np.mean(approx_kl_divs))
logger.record("train/clip_fraction", np.mean(clip_fraction))
logger.record("train/clip_fraction", np.mean(clip_fractions))
logger.record("train/loss", loss.item())
logger.record("train/explained_variance", explained_var)
if hasattr(self.policy, "log_std"):