Problem random sampling

[Pomdpin]

Hello everyone.

I've created an app to generate NPC for TTRPG and while it works great, I've noticed that whenever the session ends and I start the app again..... it looks like it's resetting to a specific seed so that the NPC created are basically always the same.

Problem is, I didn't set any seed.

For example :

I've generated an NPC from the published webapp and got "Thokmay - 30 yo, completely bald or shaved with a large bushy mustache".

I closed the browser, waited a bit, opened it again, started the app and when I generated the NPC, exact same result.

I turned off the computer, waited, generated an NPC and still Thokmay.

Just in case, I completely cleared the cache and cookies, turned everything off and yet.... still Thokmay.

I tried it again by generating 3 NPCs at once and in each scenario, the NPCs were the same

What's even weirder is that if I use not the published webapp but directly from Rstudio, I don't have that problem.

The script itself is very simple, I import a dataframe with names and stuff and just :

  name <- list_names %>% 
   filter(Gender==gender) %>% 
    sample_n(1,replace = TRUE) %>% 
    pull(XYZ)
  
  age<- round(rnorm(n=1, mean=45, s=15),0)

Do you guys have any idea what may be causing that ?

[prubin]

Just to be safe, try replacing your sample_n() command with head() and verify that more than one record is selected. If only one record matches the filter criterion, random sampling will not be very random.