set.seed doesnt work

General
1

does anybody have an idea, why the results are differing? Couldnt find a solution on the internet
I`m using R version 4.1.2 (2021-11-01).

> set.seed(2021)
> rnorm(5)
[1] -0.1224600  0.5524566  0.3486495  0.3596322  0.8980537
> rnorm(5)
[1] -1.92256952  0.26174436  0.91556637  0.01377194  1.72996316
> rnorm(5)
[1] -1.0822049 -0.2728252  0.1819954  1.5085418  1.6044701
> rnorm(5)
[1] -1.841476  1.623310  0.131389  1.481122  1.513318
> rnorm(5)
[1] -0.9424433 -0.1856850 -1.1011246  1.2081153 -1.6249385

thanks for your help in advance,
Joe

2

It does work. You're just not using in the way it's expected.

If you set a particular seed and run some function with randomness, any repetition will be reproducible. But if you call the function multiple times after setting seed once, it'll vary.

Try this, and let us know if it shows different results or same:

set.seed(2021)
rnorm(5)
set.seed(2021)
rnorm(5)
set.seed(2021)
rnorm(5)
set.seed(2021)
rnorm(5)
set.seed(2021)
rnorm(5)
3

it works this way. Thank you very much!!!