error

where is the error in this code??? and how to get a plot for this signal?

% _ _ signal generation
A1=10; %Amplitude 1
A2=10; %Amplitude 2
w1=2*pi*0.2; % angular frequency 1
w2=2*pi*0.225; % angular frequency 2
Ts=1; % sampling time
N=64; % no. of process samples to be generated
K=1; % no. of independent process realization
sgm=1; % standard deviation of the noise
n=repmat((0:N-1).',1,K);
phi1=repmat(rand(1,K)*2*pi,N,1); % random phase matrix 1
phi2=repmat(rand(1,K)*2*pi,N,1); % random phase matrix 2
x=A1*sin(w1*n*Ts+phi1)+A2*sin(w2*n*Ts+phi2)+sgm*randn(N,K); %   resulting signal
  % _ _ periodogram overlay
NFET=256; %FFT length
X=1/N*abs(fft(x,NFET)).^2; % PSD estimate using FFT
% _ _ periodogram average - - 
Xav= sum (X,2)/K ; % average columns

[the cyclist]

I don't get any error message from that code, so maybe you could make a little more effort in your question, so we can help you. Seem reasonable?

[enas]

so why didnt I get any figure for the code?

how can I get a plot?

[enas]

the error is in n=repmat((0:N-1).',1,k)

[the cyclist]

enas, you seem to be posting the smallest possible amount of explanation, and hoping that we will figure out what you mean. Please provide more explanation about what you think is incorrect here. This code creates no error message for me (in version R2011b on a Mac). If you are getting an error message, please tell us what it is.

The line you mention, n= repmat((0:N-1).',1,k), creates a column vector from 0...63, as I would expect from your code, since K=1. Is that not what you want? Provide some details!

Your code does not create a figure because there are no figure-creating commands in it. Did you want to plot something? Maybe try "help plot" to get started?