Dear All

I am having some problem in analysing signals on MATLAB. I am trying to see nerve conduction studies signal in frequency domain. I have been applying following commands as I was told it is correct commands. I constantly getting an error message (Undefined function or variable 'norm_elbow_motor1b'). Is there anyone who can help me as i am not an expert in MATLAB? I will highly appreciate if someone can help me in this regards.

Regards

Kim

% For EEG
t = linspace (0, 0.50, 640);
x = norm_elbow_motor1b;
h = spectrum.periodogram('Rectangnorm_wrist_motor1norm_wrist_motor1norm_wrist_motor1ular');%

hopts = psdopts(h,x);  % Default options based on the signal x
set(hopts,'Fs',1/(t(2)-t(1)),'SpectrumType','twosided','CenterDC',true);
psd(h,x,hopts)


Undefined function or variable 'norm_elbow_motor1b'.

On 08/27/2016 4:28 AM, kimshah077@gmail.com wrote:
....

> ... getting an error message (Undefined function or variable
> 'norm_elbow_motor1b'). ...
> ...
> % For EEG
> t = linspace (0, 0.50, 640);
> x = norm_elbow_motor1b;
> h = spectrum.periodogram('Rectangnorm_wrist_motor1norm_wrist_motor1norm_wrist_motor1ular');%
>
> hopts = psdopts(h,x);  % Default options based on the signal x
> set(hopts,'Fs',1/(t(2)-t(1)),'SpectrumType','twosided','CenterDC',true);
> psd(h,x,hopts)
>
>
> Undefined function or variable 'norm_elbow_motor1b'.

x = norm_elbow_motor1b;

Well, if norm_elbow_motor1b isn't a script that loads the data, then it 
must be a data array itself.  If it doesn't exist in the workspace, then 
clearly can't do much without any data.

Looks like you're expected to have already loaded the data into a 
variable of that name...some other script/function supposed to have been 
executed prior to this one--running it would be the most likely solution 
it would seem.  Whoever gave you the above should have the rest of the 
instructions as well...


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