How to generate same set of random numbers?

How to generate same set of random numbers time and again?

Answer 1

[Abhishek Jain]

You can control random number generation using 'rng()' function. The usage is rng(seed).

rng(seed) seeds the random number generator using the nonnegative integer seed so that rand, randi, and randn produce a predictable sequence of numbers.

Hope that helps..!!

[Will Smith]

Thank you for the quick response.

Answer 2

[Walter Roberson]

See rng() if you are using a reasonably recent MATLAB.

[Will Smith]

Thank you for the quick response.

Answer 3

[Yaxuan Li]

Why this doens't work for me?

rng(1,'twister');
x = rand(1,5)

x =

0.4170 0.7203 0.0001 0.3023 0.1468

x = rand(1,5)

x =

0.0923 0.1863 0.3456 0.3968 0.5388

[Walter Roberson]

You need to reset the seed.

rng(1,'twister');
x = rand(1,5)

x = 1×5

0.4170 0.7203 0.0001 0.3023 0.1468

rng(1,'twister');
x = rand(1,5)

x = 1×5

0.4170 0.7203 0.0001 0.3023 0.1468