Hi Everyone,
I would like to export my signal in edf format, using MATLAB 2022a (academic use). I wrote the following code for a representative EEG:
hdr.StartDate = "13.09.23";
hdr.StartTime = "13.09.24";
hdr.PhysicalMin = [-3200];
hdr.PhysicalMax = [3200];
hdr.DigitalMin = [-32768];
hdr.DigitalMax = [32767];
hdr.DataRecordDuration = seconds(360);
edfwrite("EDFTEST.edf",hdr,EEG);
But when I use edfread to opne it, it shows:
edfread("EDFTEST.edf")
ans =
timetable
Record Time Signal_1
___________ _________________
0 sec {360000×1 double}
When I open the edf file in another program (Sigview), it is unusal:
Indeed, first I tried the code with my real EEG signal, and the exported signal was just some vertical lines!
It would be great if someone could tell me what my mistake in the code is, particularly in the header. I tried different values for PhysicalMin, PhysicalMax, DigitalMin, and DigitalMax, but there was no improvement.
I really appreciate your help, as I am stuck at this step!
