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
el 13 de Jul. de 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 comentarios
KSSV
el 14 de Jul. de 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) ;
Más respuestas (2)
Chunru
el 13 de Jul. de 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 comentario
Steven Lord
el 13 de Jul. de 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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