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Topic: AVGPOWER
Replies: 2   Last Post: Aug 4, 2010 9:49 AM

 Messages: [ Previous | Next ]
 Putrisia Hendra Posts: 11 Registered: 4/16/10
AVGPOWER
Posted: Aug 3, 2010 11:46 PM

hi guys..
this function tell us about average power a signal.
so, if we want to use that function in GUI how we can do that? i mean what should we d first?
i have some code:

% compute the power spectrum, telling the FFT to use length(x) as the number of
%points in the FFT, and to use the sampling frequency 256Hz.
[P,f] = periodogram(x2,[],length(x2),256);
%the function returns a vector of frequencies at which the FFT was computed, f,
%and the power at each frequency, P.

temp_1((1:15386),1)=P;
temp_1((1:15386),2)=f;
delta=[temp_1((1:8),1) temp_1((1:8),2)];
theta=[temp_1((9:16),1) temp_1((9:16),2)];
alpha=[temp_1((17:24),1) temp_1((17:24),2)];
beta=[temp_1((25:40),1) temp_1((25:40),2)];
delta=sortrows(delta);
alpha=sortrows(alpha);
beta=sortrows(beta);
theta=sortrows(theta);

d=avgpower(delta)

set(handles.delta,'String',d)
guidata(hObject,handles)

avgpower is doent work here..

are there any solution bout my code?

Date Subject Author
8/3/10 Putrisia Hendra
8/4/10 Putrisia Hendra
8/4/10 Steven Lord