Matlab Electromyography (EMG) signal

Hi all,

Can anyone help me find an ENG signal sample?

I found the document in the link below where an emg.txt file is mentioned. Does anyone know from where I can find this file or how to replicate an EMG signal?

http://www.biomech.uottawa.ca/english/teaching/apa6905/lab/MatLab%20Help%20-%20EMG%20Analysis.pdf

[Star Strider]

When I clicked on that link, I got:

Not Found

The requested URL /english/teaching/apa6905/lab/MatLab%20Help%20-%20EMG%20Analysis.pdf was not found on this server.

Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

[John Smith]

Thanks for the reply. Do you know from where I can find similar EMG signal files please?

[Star Strider]

My pleasure.

Try Physionet.

[John Smith]

Thanks. I managed to find a text file in the link you provided, but I am still having issues loading it to Matlab.

I am using the following commands:

dname='C:\Users\John\Desktop\';
file='emg.txt';
fname=fullfile(dname,file);
y=load(fname);

The following error is showing:

Error using load Number of columns on line 7 of ASCII file C:\Users\Adrian VB\Desktop\emg.txt must be the same as previous lines.

Any suggestions please?

[Walter Roberson]

The URL was split over two lines when it should not have been. I have edited it. I am able to click it successfully now.

[Star Strider]

+1 Walter!

Editing the Question to discover that didn’t occur to me.

Answer 1

[Star Strider]

Post an example of the text file you want to read. One I looked up suggests that:

fidi = fopen( ... , 'rt');
data = textscan(fidi, '%f%f')

will probably work to read it, but without seeing an example of the actual file it’s not possible to write specific code.

[Star Strider]

Don’t use load. Use textscan.