getting a vector with random numbers but with new criteria
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i need to get an 80 cells vector with random numbers that will be between 1 to 8.
each number, x for example, need to be different from x+1 and x-1, and also different from x+2 and x-2.
to make it clear:
what i need is like: 4-1-5-3-2-6-4-2-3-5-...
and what i have now is: 3-5-1-5-7-4-5-3-4-3-...
is it possible in matlab?
thanks.
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Roger Stafford
le 9 Jan 2015
Modifié(e) : Roger Stafford
le 9 Jan 2015
You want n random integers, each ranging from k to z, such that each differs from the two previous integers. Call the vector of integers V and do this:
V = zeros(1,n);
V(1) = randi([k,z]);
d = setdiff(k:z,V(1));
V(2) = d(randi(z-k));
for m = 3:n
d = setdiff(k:z,[V(m-2),V(m-1)]);
V(m) = d(randi(z-k-1));
end
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