This looks interesting. My impression is that d3.random has not offered a way to seed its random number generators in the past so I've always used a library called ChanceJS when I've needed reproducibility. Is there a way to seed the other d3.random* functions?

All of d3-random’s generators expose a random.source method which you can use to specify the source of randomness. In the past I’ve tended to use the seedrandom library for this purpose, but with d3.randomLcg, you can now do it without a new dependency. https://observablehq.com/@d3/random-source

Thanks Mike! If I had known this three days ago, I would probably have approached the Law of Large Numbers demo that I wrote for my stats class a bit differently: https://observablehq.com/@mcmcclur/law-of-large-numbers

Doesn't throw. Per the docs the seed may be a real in [0..1] or any integer, but only the first 32 bits are considered.

Behavior was changed on 2020-08-29 in https://github.com/d3/d3-random/pull/37.

updated. thank you!