how to disable the picture
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Hi, every time I run the following code, a figure is generated. How can I disable it?
Thanks.
a0 = 0.05; a1 = 0.1; b1 = 0.85;
nu = randn(2300,1);
epsi = zeros(2300,1);
h = zeros(2300,1);
for i=2: 2300
h(i) = a0 + a1 * epsi(i-1)^2 + b1 * h(i-1) ;
epsi(i) = nu(i) * sqrt(h(i));
end
yt = zeros(2300,1);
for i=1: 2300
yt(i) = epsi(i)*epsi(i);
end
order = 15;
m = arx(yt, order);
7 Comments
Walter Roberson
on 19 Feb 2013
Have you tried using the debugger and stepping through the code to find out which command is generating the plot ?
Answers (2)
Youssef Khmou
on 19 Feb 2013
hi,
your code does not produce any figure,
but if you want, you can add the following at the end of your code :
close;
0 Comments
Rajiv Singh
on 19 Feb 2013
It is the RESID command that is bringing up the plot. It belongs to System Identification Toolbox. To make it work as documented (no figures when called with output arguments), use an IDDATA object to represent the data, as in:
r = resid(iddata([yt1(1:order);yt1]), m);
Calling RESID with double vector representing data is supported for backward compatibility. However, in this mode, the plot also gets shown since this was the behavior in the past before IDDATA object was introduced (I believe in ver 5).
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