Effacer les filtres
Effacer les filtres

Compute the average of pwelch

7 vues (au cours des 30 derniers jours)
Tu Nguyen
Tu Nguyen le 6 Avr 2022
Modifié(e) : Tala le 6 Avr 2022
Hi all
I have eeg signal with 129 samples,
I computed each signal, now I need to take the average of all 129 samples and plot that average. How can I do that?
Please help me.
I reeally appreciate that
clc;
close all;
clear;
load('eeg_Fs250Hz.mat');
[row columm] = size(eeg);
for i = 1:columm
[ppx{i}, f{i}] = pwelch(eeg(:,i),200,100,200,Fs);
figure(1);
plot(ppx{i});
hold on
end

Réponses (1)

Tala
Tala le 6 Avr 2022
not sure what the avarage of pwelch means! maybe avarage energy of your signal? there are better ways to do so...anyways...you could just this after your hold on command.
plot(mean(ppx{i}));
I would add f{i} as well in my plots. meaning plot(f{i}, ppx{i}) to see the frequencies on your plot
  6 commentaires
Tu Nguyen
Tu Nguyen le 6 Avr 2022
I got it. Appreciate you a lot
Tala
Tala le 6 Avr 2022
Modifié(e) : Tala le 6 Avr 2022
my pleasure

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