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Update MLP_Policy.py #9

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6 changes: 5 additions & 1 deletion hw1/cs285/policies/MLP_policy.py
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Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,11 @@ def update(
adv_n=None, acs_labels_na=None, qvals=None
):
# TODO: update the policy and return the loss
loss = TODO
self.optimizer.zero_grad()
predicted_actions = self(torch.Tensor(observations).to(self.device))
loss = self.loss_func(predicted_actions, torch.Tensor(actions).to(self.device))
loss.backward()
self.optimizer.step()
return {
# You can add extra logging information here, but keep this line
'Training Loss': ptu.to_numpy(loss),
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