Create a two-point distribution?

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kevin cecere palazzo
评论： kevin cecere palazzo 2019-10-17
I want to multiply each element of a vector by a random variable X that takes values +1 and -1 with probability 1/2. How do I create this random variable?

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dk
dk 2019-10-17
N=100;
x=sign(rand(N,1)-0.5);

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