Open the .dat file in Matlab

I have an ECG file in the format of .dat, and I wanted to change it to .mat. the file is extracted from the physionet dataset. Could you please help me?

[dpb]

Have to read in the .dat file and then save as .mat. Can't just change a file format from one to the other.

[Reza Bagherian Azhiri]

Could you please tell me about the related codes?

Answer 1

[Sulaymon Eshkabilov]

You can employ a few built in data import functions of MATLAB to read your data and then save them in *.mat file. E.g:

FN = 'MY_DATA.dat'; % Introduce your *.dat file name
FID=fopen(FN,'r');
T=10;               % Introduce the time length   
DATA=fread(fid,2*360*T,'ubit12');  % Adjust w.rt. your data, respectively
save('MY_data.mat', 'DATA');
fclose(FID)

Good luck

Answer 2

[DGM]

I've never even heard of PhysioNet. It took me 15 min to do a web search and figure it out. Just sayin.

There's a basic overview here with links for the WFDB toolbox for Matlab. Download/install the toolbox.

https://archive.physionet.org/faq.shtml

Once it's installed, run

help wfdb2mat

and maybe try the example:

wfdb2mat('mitdb/200')

This downloads the specified dat file and makes a local copy as a .mat file with an associated .hea file.

The toolbox also includes other tools for further operation on the data.