<![CDATA[RuntimeError: expand(torch.DoubleTensor{[694, 6]}, size=[694]): the number of sizes provided (1) must be greater or equal to the number of dimensions in the tensor (2)]]>Hello,

I am cloning the Q18 neural network example (LSTM) and running it. I noticed that when I leave the get_features function with only 1 feature, the model runs normally
Screenshot 2024-03-02 224511.png
I plan to use more features as follows:
Screenshot 2024-03-02 224556.png
And got the following error
ea046276-cbba-4947-b5f6-d2b667c1ad0f-image.png
65f0558a-daeb-456c-a6b8-4622d12f1c96-image.png
Screenshot 2024-03-02 224947.png

Please show me how to fix the error so that I can apply more features. I only edited the get_features function, all the remaining code is the same as the Q18 neural network example

Please help me. Thank you so much.

]]>http://quantiacs.com/community/topic/529/runtimeerror-expand-torch-doubletensor-694-6-size-694-the-number-of-sizes-provided-1-must-be-greater-or-equal-to-the-number-of-dimensions-in-the-tensor-2RSS for NodeMon, 07 Sep 2026 18:47:01 GMTSat, 02 Mar 2024 15:51:29 GMT60<![CDATA[Reply to RuntimeError: expand(torch.DoubleTensor{[694, 6]}, size=[694]): the number of sizes provided (1) must be greater or equal to the number of dimensions in the tensor (2) on Sun, 10 Mar 2024 15:22:08 GMT]]>@support Thank you so much. I have resolved this error

]]>http://quantiacs.com/community/post/1453http://quantiacs.com/community/post/1453Sun, 10 Mar 2024 15:22:08 GMT<![CDATA[Reply to RuntimeError: expand(torch.DoubleTensor{[694, 6]}, size=[694]): the number of sizes provided (1) must be greater or equal to the number of dimensions in the tensor (2) on Sun, 10 Mar 2024 15:06:25 GMT]]>@illustrious-felice It looks like your feature is prepared in a way that the computation of a log with argument zero is involved, which triggers an error. You need to handle this case, for example with a try/except clause.

]]>http://quantiacs.com/community/post/1452http://quantiacs.com/community/post/1452Sun, 10 Mar 2024 15:06:25 GMT<![CDATA[Reply to RuntimeError: expand(torch.DoubleTensor{[694, 6]}, size=[694]): the number of sizes provided (1) must be greater or equal to the number of dimensions in the tensor (2) on Mon, 04 Mar 2024 12:52:12 GMT]]>@illustrious-felice Please help me fix this error. @support @Vyacheslav_B

]]>http://quantiacs.com/community/post/1431http://quantiacs.com/community/post/1431Mon, 04 Mar 2024 12:52:12 GMT