How can i plot a multiple EEG signal channels ?

39 views (last 30 days)
hello sirs, how can we plot a picture has multiple EEG signal channels like the picture above. My data have sampling frequency fs= 500, recordDuration= 1s, 21 channels and 21 record numbers. Can you give me an example code ? Thanks !

Accepted Answer

Voss
Voss on 27 Feb 2024
Edited: Voss on 27 Feb 2024
This answer was flagged by Kimizuka
Example:
fs = 500;
tmax = 1;
nch = 21;
nt = fs*tmax;
t = (0:nt-1)/fs;
data = randn(nt,nch);
figure('Position',[1 1 500 800])
h = stackedplot(t,data,'k','DisplayLabels',"EEG"+(1:nch));
set(h.AxesProperties,'YLimits',[-3 3])
  3 Comments
Voss
Voss on 27 Feb 2024
You're welcome! Any questions, let me know.
If this answer helped you, consider voting for it and/or "Accept"ing it. Thanks!
DGM
DGM on 5 Mar 2024
Posted as comment-as-flag by Nguyen Ngoc Nghiem:
this answer was a great help for this problem

Sign in to comment.

More Answers (1)

Adrián László Szemenyei
Edited: Adrián László Szemenyei on 27 Feb 2024
This answer was flagged by Kimizuka
If you dont want to implement it, just use EEGLAB (which can read in numerous different data types, if I remember correctly, you can also use it to change your data type to .mat).
If you want to implement it with the slider and whatnot, check out MATLAB GUI and its functions (you will probably need uifigure, uipanel, uiaxes, uislider).
To change the names on the y-axis, use yticks and yticklabels function. (Note that if your data is really large and you read it all in, the GUI might be slow and/or crash, EDIT: but this is not the case for you)
Alternatively stackedplot, you can use subtightplot. Or if you dont mind if two channels possibly overlap, than add different values to the different channels.
EDIT: I realized that your data is only one second long, so you probably dont need GUI with its slider, but the rest of my answer is relevant.
  3 Comments
Nguyen Ngoc Nghiem
Nguyen Ngoc Nghiem on 27 Feb 2024
Thanks, sir. I encountered a lot of difficulties when dealing with 3D datasets with .edf files. :((
DGM
DGM on 5 Mar 2024
Posted as comment-as-flag by Nguyen Ngoc Nghiem:
this answer was a great help for this problem

Sign in to comment.

Categories

Find more on EEG/MEG/ECoG in Help Center and File Exchange

Products


Release

R2023a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!