Factorio Forums

Hi! Please sorry me for my bad English!

I started a new game to 0.15.3, and hoarding uranium to 40 pcs to version 0.15.9 the ratio of U235 was about 0,69% - 0,78% and with the release 0.15.9 the counter began to fall last night, 0,66% and today it dropped to 0.56% at the time of the next production of U235 was 0,53% . Hope you'll check this point for fastest emulation. Thank you for investing so much work in this wonderful project!

AFAIK the probability is .7%, deviations based on that would be expected, depending on the implementation of distribution.

They never changed the actual value of the recipe. They merely fixed the display bug where it appeared as 0.0% instead of the proper 0.7%.

RNG is just screwing you over. The game is deterministic but they still use RNG through the map seed and the current game tick to give the appearance of randomness.

I can't argue about changing the recipe, I wanted to say that perhaps something had influenced generation... I understand that the collected amount is too small for serious evaluation, but I've seen a significant drop in the production of U235 for version 0.15.9. Besides, I don't know how can affect module efficiency in the extraction of U235. Today I have collected 35 - U235, which accounted for 0.62% of U238 and that value me more than happy.

Сollected the 41 - U235, which was 0.57% of the U238.

life wrote:Сollected the 41 - U235, which was 0.57% of the U238.

Running a 1-sample z-test, when 41 out of 7200 operations yielded U-235, with the null hypothesis P0=0.007 (as defined by the prototypes), one gets a p-value of about 0.184, which means there's a 18.4% chance that the actual ratio being produced by the game is not actually 0.007; generally, you'll want to wait for the p-value to fall to 0.05 before making the statement that there's potentially a problem.

I started a new test for seed "12671487" and currently the U-235 is a value of 0.55%. What is surprising is that the First centrifuge gives more uranium than the second, I will assume that a larger number of centrifuges can bring about the desired 0.7 percent. Thanks for reading!

To make usefull asumptions, you should probably create far more then the 40 U-235 required - if your ratio at like 1000 U-235 is still at 0.5x, then its starting to be interesting.

Also, keep in mind that if you only take like some U-235 for whatever reason out of the 40 away, the results are totally screwed, but you probably were carefull on your test.