Can anyone tell me why this error is occurring and how to solve it? Thank you.
6 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am getting modwt (line138) error saying invalid transform level. I have tried using different ecg data files in mat format from physionet atm.
Code:
%program to get QRS peaks and Heart Rate from ECG signal
[filename,pathname]=uigetfile('*.*','Select the ECG Signal');
filewithpath=strcat(pathname,filename);
Fs=input('Enter Sampling Rate: ');
ecg=load(filename); %Reading ECG signal
wecg=(ecg.val)./200; %Normalize gain
t=1:length(wecg); %No. of samples
tx=t./Fs; %Getting Time vector
wtecg= modwt(wecg,4,'sym4'); %4-level undecimated DWT using sym4 //this is where the error is occurring//
wtrec=zeros(size(wtecg));
wtrec(3:4,:)= wtecg(3:4,:); %Extracting only d3 and d4 coefficients.
0 commentaires
Réponses (1)
William Rose
le 24 Fév 2023
@Rafia Noshin, please include a sample ecg data file so we can run the code.
What error do you get? When I run that line, I get no error:
wecg=rand(1,2000);
wtecg= modwt(wecg,4,'sym4');
disp(size(wtecg))
It runs without error for me.
7 commentaires
Voir également
Catégories
En savoir plus sur Signal Analysis dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!