# trying to make a random number sequence similar to an MLS sequence

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Tom 2012년 4월 3일
I'm trying to create a random number sequence like this one: -
x = 2*rand(N,1)-1; % generate input noise signal
except instead of the numbers being at all different values between -1 and 1, I'd like them to be either -1 or 1 only.
Does anyone know how I might do this?
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Daniel Shub 2012년 4월 4일
This is nothing like an MLS sequence. What you are looking for is often called Bernoulli noise.
Matt Fig 2012년 11월 2일
Tom's question
I'm trying to create a random number sequence like this one: -
x = 2*rand(N,1)-1; % generate input noise signal
except instead of the numbers being at all different values between -1 and 1, I'd like them to be either -1 or 1 only.
Does anyone know how I might do this?

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### 채택된 답변

Honglei Chen 2012년 4월 3일
a = 2*(randi(2,N,1)-1.5)
or
a = 2*(rand(N,1)>0.5)-1
Tom 2012년 4월 4일
many thanks :)

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