Hi, I am kind of beginner in MATLAB and I try to use the following code. It seems I should define p and q but I can not figure out how should I enter p and q to the code
function [CL,e,psi,r] = ARMA_FULL(theta0, data) %function CL=ARMA_FULL(theta0,data)
% define the global vector
global p q;x=data;% initial parameter set theta0 is a column vector;
% c is the constant of the general ARMA model;
% ar is the (1*p) vector;
% ma is the (1*q) vector;
if p==0; % initial parameters for pure moving average model
y=x-mean(x); ma=theta0(2:end-1); s=theta0(end);...
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