Randperm generating the same sequence of permutation

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I am using randperm to generate different random permutations (subset of the data) from a data set. However even after 2 iterations it is generating the same combination of the number. For eg: the desired output would be like p={1,3,5,6,9,10},{4,6,7,2,1,3}... however i am getting p={1,4,5,7,8},{1,4,5,7,8}. its the same sequence i am getting.
saikath

Risposte (2)

Azzi Abdelmalek
Azzi Abdelmalek il 17 Giu 2015
Modificato: Azzi Abdelmalek il 17 Giu 2015
for k=1:3
out{k}=randperm(10,5)
end
celldisp(out)
  1 Commento
Saikath Bhattacharya
Saikath Bhattacharya il 17 Giu 2015
i used the for loop to generate different subsets and selected randomly from them. Thanks a lot

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James Tursa
James Tursa il 17 Giu 2015
Are you resetting the random number generator in between iterations?
  4 Commenti
Guillaume
Guillaume il 17 Giu 2015
You can use two different RandStream, one for the random sequence generation, one for randperm.
Saikath Bhattacharya
Saikath Bhattacharya il 17 Giu 2015
Thanks a lot. i figured it a different approach, i generated 100 random subjects. and selecting random subject at a time and kept it in an iteration.
Thanks a lot

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