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swaping 2 random numbers from array

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saphir alexandre
saphir alexandre 2022-4-28
评论： saphir alexandre 2022-4-28
hello,
I have an array x = [1,(randperm(20)+1)]
but i would like to swap 2 random numbers of that array while keeping 1 as my first integer
please let me know how to go about that

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Bruno Luong
Bruno Luong 2022-4-28
ij = randperm(length(x)-1,2)+1;
x(ij) = x(flip(ij));

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