How to generate pseudo random number with fix range ?

Hello.

All I needs is a set of random numbers with the same mu but range between 1 to 9. No fix distribution No fix variance, just the same mu. So, I have try . . .

r=mu*rand([1 9],m,n);

m=30,500 and 1000, n=1

but it does not work T-T

Thankyou for all your kindness and help and I'm so sorry about my broken english ^_^

Answer 1

[Geoff]

I've seen this kind of question asked before. Have a look at the solution here:

http://www.mathworks.com.au/matlabcentral/answers/32036-generate-random-numbers-with-specific-properties

Answer 2

[Wayne King]

You can generate uniform random numbers between 1 and 9 with:

    R = 1+8*rand(1000,1);

[Chanon]

this syntax can generate uniform random numbers between 1 and 9 but mean were difference each time I generate. I want the same mean (x bar) each time I generate. Thanks.

[Wayne King]

You are not going to get a random number generator to produce a sequence that follows some probability law that has the exact same mean each time unless you just generate the same sequence each time.

[Oleg Komarov]

Unless the number of trials becomes inf, which is another way of phrasing Wayne's statement.