Randomly select an element

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Vero Alin
Vero Alin 2017-11-16
评论： Vero Alin 2017-11-16
Hello. I have an array: A=[4 8 7 9 5] How to I randomly select an element from the array? Thanks a lot.

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KL
KL 2017-11-16
编辑：KL 2017-11-16
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KL
KL 2017-11-16
编辑：KL 2017-11-16
Yes, it is. The documentation says so. You could test it like,
A=[4 8 7 9 5];
A_rand = zeros(1,15);
for k = 1:numel(A_rand)
A_rand(1,k) = randsample(A,1);
end
now the result is,
A_rand =
5 5 5 4 9 8 7 5 9 8 4 7 5 7 4
Another alternative is to create the index randomly but that's pretty much the same,
A(randi([1 numel(A)],1)) or A(randperm(numel(A),1))
Vero Alin
Vero Alin 2017-11-16
Alright. Thank you. Much appreciated.

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