iTranslated by AI
The content below is an AI-generated translation. This is an experimental feature, and may contain errors. View original article
🎲
Setting Seeds for Pseudorandom Numbers in Julia
I'm writing this article because I couldn't find the information I was looking for even when searching in Japanese. There are two ways to specify a seed for random numbers.
Packages
First, let's load the package.
Package
using Random
Passing as an argument
You can pass a seed like MersenneTwister(12345).
Input
MT = MersenneTwister(12345)
rand(MT, 10)
Output
10-element Vector{Float64}:
0.5627138851056968
0.8499394786290626
0.37160535186424815
0.28336464179809084
0.381127966318632
0.36580119057192695
0.8350140149860443
0.26002375370524433
0.9223171788742697
0.040441694559945285
Using Random.seed!()
You can also specify it later with Random.seed!(). While this approach is more likely to show up in search results, I personally prefer the method described above.
Input
MT = MersenneTwister()
Random.seed!(MT, 12345)
rand(MT, 10)
Output
10-element Vector{Float64}:
0.5627138851056968
0.8499394786290626
0.37160535186424815
0.28336464179809084
0.381127966318632
0.36580119057192695
0.8350140149860443
0.26002375370524433
0.9223171788742697
0.040441694559945285
You can confirm that the same random number sequence is generated.
Discussion