shape mismatch: value array of shape (4096,) could not be broadcast to indexing result of shape (2,4096,3)

[mohala562]

Trying to run 04_q_learning_for_trading results in the following error:

118 print(targets.shape)
119 print(targets)

--> 120 q_values[[self.idx, actions]] = targets 122 loss = self.online_network.train_on_batch(x=states, y=q_values) 123 self.losses.append(loss)

ValueError: shape mismatch: value array of shape (4096,) could not be broadcast to indexing result of shape (2,4096,3)

Running tensorflow 2.9.2 (GPU)

[ghost]

Same here... have you found a solution?

[dereklegenzoff]

Same issue

[dereklegenzoff]

I changed the line in the error message to this:q_values[self.idx, actions] = targets

So far it seems to be working for me.

[stefan-jansen]

There have been several updates to the open AI gym since publication. Please either use the version that was current at publication (around 2020/06) or update the code accordingly.

[ghostMike666]

https://www.facebook.com/mxalgrito?mibextid=ZbWKwL IP??

El sáb., 30 de julio de 2022 10:17, defc0n1 @.***> escribió:

Trying to run 04_q_learning_for_trading results in the following error:

118 print(targets.shape) 119 print(targets)

--> 120 q_values[[self.idx, actions]] = targets 122 loss = self.online_network.train_on_batch(x=states, y=q_values) 123 self.losses.append(loss)

ValueError: shape mismatch: value array of shape (4096,) could not be broadcast to indexing result of shape (2,4096,3)

Running tensorflow 2.9.2 (GPU)

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