how do I generate a random signal with each point being -1 or +1 in MATLAB

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to generate a s_n∈{+1,-1}
with an example:
1,-1,1,1,-1,1,-1,-1,-1,-1,1,1,-1,-1,1,-1

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Rik
Rik il 21 Ott 2022
randi([0 1],1,N)*2-1
That should do it. Or even this:
sign(rand(1,N)-0.5)
Although it is possible that generates a 0 if rand happens to land exactly on 0.5.

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