MATLAB: Serie with randn

fftsere

hi! i have to create a serie (length N) with randn and then make an fft on the serie. Anyone have an idea?

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fft(randn(1,N))

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MATLAB: Randn

You cannot do that. randn() is the random number generator for the normal distribution. The normal distribution must have infinite tails on both sides, so it is not possible to confine it to any particular range (not and keep it normally distributed.)

You could use a beta distribution to give specific limits, but not a normal distribution.

MATLAB: Randn

Your question is not really clear ... how about

x = mod(randn(2, 100)+10, 20)

You maybe you mean ...

x = 10*randn(2, 100)+10;
while any(x(:) > 20)
  x(x(:) > 20) = 10*randn(sum(x(:) > 20), 1)+10;
end

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MATLAB: Randn

MATLAB: Randn

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