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Why is my while loop not working?

조회 수: 3(최근 30일)
Leo Tu
Leo Tu 2021년 7월 7일
댓글: KSSV 2021년 7월 14일
From this code, I am looking to get the nll values for all s = 0:999 where s is a parameter. When I run it, it runs very slow and only gives out one value of nll. Can anyone help me with getting the nll values for all values of the parameter s from 0 to 999.
% Initial parameter values
s = 0;
mu = 0.1;
om = 0.01;
% AT is a row vector
while s<=999
for t = s+1:length(AT)
k = abs(s:-1:(s-t+1));
id = [(t-1):-1:0]+1;
lambda(t) = mu+sum(om.^k.*AT(id))/sum(om.^k);
j = 1:length(lambda);
nll = -sum(j.*log(lambda(j)))+sum(lambda(j));
end
s = s+1;
end
  댓글 수: 5
KSSV
KSSV 2021년 7월 14일
One reason for slow is you have not initiated lambda.

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