Export matlab workspace data to python

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Indhu Priyadharshini Govindasamy
评论： Urveshkumar Dharmendrabhai 2023-5-2
i want to export matlab workspace data to python and plot the graph in python
eng.sim("add.slx")
myVar = eng.workspace["out.simout.Data"]
print(myVar)
but i am getting this ValueError: variable name is not valid in MATLAB.
Could anyone please help me to solve this?
  1 个评论
Urveshkumar Dharmendrabhai
Urveshkumar Dharmendrabhai 2023-5-2
I am trying to control and simulate the simulink model through Python. However, I am getting the same error as below:
'ValueError: variable name is not valid in MATLAB'
I have written below code:
def getOutput(self):
simout_S = self.eng.workspace['out.simout']
tout_T = self.eng.workspace['out.tout']
return simout_S, tout_T
The error which I got is related the workspace variable. The workspace variable 'simout' is already defined in the simulink model.
How can I solve this problem? How can I extract results stored in the workspace into Python and plot them at the end?
For more information about my question, kindly see my question posted on the link below:
https://de.mathworks.com/matlabcentral/answers/1956564-valueerror-variable-name-is-not-valid-in-matlab-while-extracting-the-results-stored-in-matlab-wor

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采纳的回答

Indhu Priyadharshini Govindasamy
eng.eval('a = out.simout;',nargout=0)
mpi = eng.workspace['a']
print(mpi)
adding eval worked for me

更多回答（1 个）

Sanjay Sivakumar
Sanjay Sivakumar 2021-12-14
You can try to export the MATLAB workspace data to an excel spreadsheet and use the spreadsheet in python.
https://in.mathworks.com/help/matlab/import_export/exporting-to-excel-spreadsheets.html
  1 个评论
Indhu Priyadharshini Govindasamy
Indhu Priyadharshini Govindasamy 2021-12-14
Thank you for your reply. i will try this
but if you see this link https://in.mathworks.com/matlabcentral/answers/725147-data-from-simulink-to-python-with-to-workspace-block?s_tid=answers_rc1-1_p1_MLT.
@Deepak Meena replied like we can use this line of code to access the workspace variable in python.
p = eng.workspace['out.simout'];
but i dont know why it is not working in my case.

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