my random changes its values during running my code

Question

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i working on my matlab code to generate data size with specific mean and value. so i used the following syntax:

mu=30;var=100;

ts=mu+sqrt(var)*randn(1,10);

but each time i run the code, the number inside ts vector changes and i need it to constant.

this problem affect the remaining steps of code and make size changes.

any solution to this problem??

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Answer 1

Hernia Baby 2021-2-24

编辑：Hernia Baby 2021-2-24

0 个投票

You can generate random numbers that are repeatable with saving and restoring the generator setting.

rng(1,'twister');
mu=30;var=100;
ts=mu+sqrt(var)*randn(1,10);
ts

Detail:

heba raouf 2021-2-26

thanks alot ... i tried the code and worked well