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Fix bugs for return_preds and state_preds #69

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Fix bugs for return_preds and state_preds #69

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4 changes: 2 additions & 2 deletions gym/decision_transformer/models/decision_transformer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -94,8 +94,8 @@ def forward(self, states, actions, rewards, returns_to_go, timesteps, attention_
x = x.reshape(batch_size, seq_length, 3, self.hidden_size).permute(0, 2, 1, 3)

# get predictions
return_preds = self.predict_return(x[:,2]) # predict next return given state and action
state_preds = self.predict_state(x[:,2]) # predict next state given state and action
return_preds = self.predict_return(torch.cat((tensors=(x[:1], x[:,2]), dim=2)) # predict next return given state and action
state_preds = self.predict_state(torch.cat((tensors=(x[:1], x[:,2]), dim=2)) # predict next state given state and action
action_preds = self.predict_action(x[:,1]) # predict next action given state

return state_preds, action_preds, return_preds
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