Save struct field to a file with save command

I am trying to save to a file 1channel ECG signal from the file containing structure:

Accelerometer: [5183900×4 table]

Breathing: [1295975×2 table]

ECG: [12959750×2 table]

In order to do that I am using load command to a data variable and then save it with save function with the code:

data=load('dataexported_2023_12_17.mat');
[data] = [data.ECG.EcgWaveform];
save('D:\matlab-pliki\MAT2EDF\dataexported_2023_12_17.txt', 'data','-ascii','-tabs', '-double')

Unfortunately I cannot save teh variable data to a file since the variable type is not supported and I am obtaining empty file.

Could you please enlighten me how to fix the code to save ECG data to a file?

Regards

E

Answer 1

[Voss]

Since the variable you want to save is a table, you can use writetable.

https://www.mathworks.com/help/matlab/ref/writetable.html