How to put different seed in a multidimensional matrix
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I have a multidimensional matrix where n=10, k=3
X = rand([n,k,n]);
How to put different seed number for each matrix
X(:,:,1)
X(:,:,2)
X(:,:,3)
.....
.....
X(:,:,10)
Thse seed no. for each matrix should be different.
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KSSV
il 13 Lug 2022
n = 10; k = 3 ;
R = zeros(n,k,n) ;
for i = 1:n
rng(i) % i can be a positive integer
R(:,:,i) = rand(n,k) ;
end
2 Commenti
KSSV
il 14 Lug 2022
Off course the number are random and they don't repeat.....also note that, there is no ncecessity to set seed for each iteration. You just need:
R = rand(10,3,10) ;
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Chunru
il 13 Lug 2022
Not sure why you have to do this. But it can be done as follows:
n = 10; k=3;
X = zeros([n,k,n]);
seeds = [1:n]; % your seed numbers
for i=1:n
rng(seeds(i));
X(:, :, i) = rand(n, k);
end
Steven Lord
il 13 Lug 2022
You might think that by changing the seed so frequently you're making the numbers "more random". You're not, as stated by the Note on this documentation page.
Call rng once before you start generating random numbers. Generate your numbers. Then if you need a different seed for your next run call rng again with a different seed.
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