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
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
chan
chan il 13 Lug 2022
Thank you for giving me the solution but i dnt want the random no. to be repeated for every run. How to do that?
KSSV
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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Più risposte (2)

Chunru
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
  1 Commento
chan
chan il 13 Lug 2022
Modificato: chan il 13 Lug 2022
Thank you for giving me the solution but i dnt want the random no. to be repeated for every run. How to do that?

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Steven Lord
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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