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central limit theorem random process

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yuval ohayon
yuval ohayon 2018-12-9
编辑： John D'Errico 2018-12-9
ho i need to generate the next equsion x[n]=sigma(w[n]) where w[n] gets probability of 1 and -1 ,and to check the charachteristic, for N LARGE enough to see the variance and the mu..well i stuck at the beginnig can genrate a vector of 1 and -1
for i=1:N
x(1,:)=(-1)^i*(rand(1,1000))
if x(1,i)<=0
x(1,i)=-1
else
x(1,i)==1
end
its get the correct vector.. any body help

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回答（1 个）

John D'Errico
John D'Errico 2018-12-9
编辑：John D'Errico 2018-12-9
What would this do?
rand(1,N)
So then, what would this do, if I appended a round on top? I.e.,
round(rand(1,N))
What possible values could result from that? Would the possible results be equally probable? But, now what if I multuplied by 2?
round(rand(1,N))*2
Now what values can you get? Does it seem we are getting close? So what if we subtracted 1?
round(rand(1,N))*2 - 1

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