About random number generators

Question

ahmed abrous 2014-2-22

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/118090-about-random-number-generators

回答： ahmed abrous 2014-2-25

Hi everyboby

I want to create a program on simulink which use a random number box but I have seen that its output is repeated at each step of the simulation. So how can I change the seed of this program to get the good result.

I use actually matlab 2010a, and I tried rng bgut not working.

Thank you.

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Answer 1

Lucas García 2014-2-22

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/118090-about-random-number-generators#answer_125600

在 MATLAB Online 中打开

As you have found out, using rng is the way to go with the current MATLAB version.

Although currently discouraged, you can use the former synthax for changing the seed with older MATLAB versions: http://www.mathworks.es/es/help/matlab/math/updating-your-random-number-generator-syntax.html

rand('seed', sd)

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ahmed abrous 2014-2-22

Yes, exactly, but I don't have Matlab 2013 on my computeur. Also I want to use uniform random number block on simulink, and when I read the help it says "Output is repeatable for a given seed". So the goal is to change this seed on simulink at each sample time of the simulation.

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