Using normrnd to generate a random sequence

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Nat
Nat le 12 Fév 2018
Commenté : Nat le 12 Fév 2018
I'm trying to use the function 'normrnd' to generate a zero-mean random sequence distributed uniformly between +/- 0.25. How do I go about doing this?

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Roger Stafford
Roger Stafford le 12 Fév 2018
The best answer to your question is, “don’t use ‘normrnd’ for that purpose!” It is very much the wrong distribution for that.
You should use ‘rand’ as follows:
x = 0.5*rand(m,n)-0.25;
This will give you a statistically uniform distribution between -0.25 and +0.25, and nowhere else.
  2 commentaires
John BG
John BG le 12 Fév 2018
Modifié(e) : John BG le 12 Fév 2018
Hi Nat
.. to generate a .. random sequence ..
x = 0.5*rand(1,n)-0.25
or
x = 0.5*rand(n,1)-0.25
not m sequences
John BG
Nat
Nat le 12 Fév 2018
Thanks to both of you for your help!

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