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Reinforcement Learning Algorithms implemented using Python
When updating w
for non-terminal state, why use this:
w += alpha*(reward - discount*q_hat_next)*q_hat_grad
rather than using the TD error (from Sutton's book v2 page 244, Episodic Semi-gradient Sarsa) like below?
w += alpha*(reward + discount*q_hat_next - q_hat)*q_hat_grad
Hello. I am learning reinforcement learning and have been using your repository as a reference against my own implementations. However, when I cloned and immediately ran the linear approximation SARSA notebook with no changes to the repository, I was not able to reproduce your results. Specifically, I did not receive either of the printouts you did (the WARN: gym.spaces.Box autodetected dtype as <class 'numpy.float32'>. Please provide explicit dtype.
and the Episodes before solve 99
) and the rewards vs episodes graph that was output was very different from yours (see below).
Do you have any thoughts on how to fix the issue? Any help is appreciated.
Thank you for your time!
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