Converting numpy arrays in python to .mat in matlab

Question

Karthika Krishna 2020-10-21

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回答： abraham rodriguez 2021-9-18

I have a 2D numpy array in python and I want to image this array in matlab using 'imagesc()'. I was trying to convert the array to Pandas DataFrame and then to export it as .csv file so that I can load it in matlab. But I feel there is an easier way than this. Ultimately what I want is to convert my python array to matlab matrix.

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Answer 1

Ameer Hamza 2020-10-21

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编辑：Ameer Hamza 2020-10-21

You can directly save to a .mat file using savemat() from scipy: https://docs.scipy.org/doc/scipy/reference/generated/scipy.io.savemat.html

Alternatively, you can also read about calling python functions from MATLAB: https://www.mathworks.com/help/matlab/call-python-libraries.html

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Karthika Krishna 2020-10-21

Thanks a lot. It worked.

Ameer Hamza 2020-10-21

I am glad to be of help!

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Answer 2

abraham rodriguez 2021-9-18

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https://ww2.mathworks.cn/matlabcentral/answers/621078-converting-numpy-arrays-in-python-to-mat-in-matlab#answer_790134

In latest R2021a, you can pass a python numpy ndarray to double() and it will convert to a native matlab matrix, even when calling in console the numpy array it will suggest at the bottom "Use double function to convert to a MATLAB array"