for loop only shows value of last iteration.

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Nawaf Al-Fraih
Nawaf Al-Fraih 2017-12-12
编辑： KL 2017-12-12
for SNR_db=0:10
N=((E)/(10^(SNR_db/10)));
r=((H*Q1)+N);
Ymf=transpose(H)*r;
Ymf_dec=pskdemod(Ymf,4);
Ymf_bi=de2bi(Ymf_dec,4);
Er=(b_bar-Ymf_bi);
end
for SNR_db=0:10 only shows the last iteration which is 10. i want every iteration value of this loop in order to compare them.

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回答（1 个）

KL
KL 2017-12-12
编辑：KL 2017-12-12
You're overwriting all your variables inside the loop so you'd only see the result of the last iteration. You'd need to use arrays to store output of each iteration.
%preallocate
N = zeros(1,11);
SNR_db=0:10;
%other variables as well
for k = 1:11
N(k)=((E)/(10^(SNR_db(k)/10)));
...
end
or use matlab wisely without a loop,
SNR_db = 0:10;
N=E./(10.^(SNR_db./10));
%and so on

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