Two questions about Soil Sample Analysis:
Is there any in-game indication that you've got all of the soil sample analysis results for a particular sample type?
Is it just RNG to determine if your analysis provides any results? Or are you guaranteed to get some after researching a certain amount?
Thanks for your time
you can see all settlement boni under Settlement >> Settlement boni. If a certain bonus type achieved by soil sample analyses reaches the cap, it is visible here.
The randomness of soil sample analyses are only influenced by the type of sample. Every type of soil samples use a dedicated random table. The analysis table for e.g. fascinating soil samples contains more valuable results than the one for unusual soil samples.
Hope this makes soil sample analyses and resulting settlement boni somewhat clearer.