Export matlab workspace data to python

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?

[Urveshkumar Dharmendrabhai]

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

Answer 1

[Indhu Priyadharshini Govindasamy]

eng.eval('a = out.simout;',nargout=0)

mpi = eng.workspace['a']

print(mpi)

adding eval worked for me

Answer 2

[Sanjay Sivakumar]

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

[Indhu Priyadharshini Govindasamy]

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.