fish: Fish data.
In m-clark/noiris: Data sets

Description Usage Format Details Source Examples

State wildlife biologists want to model how many fish are being caught by fishermen at a state park.

fish

A tibble of 250 rows and 6 columns. Good for demonstrating zero-inflated models.

nofish: I've never seen this explained. Originally 0 and 1, 0 is equivalent to livebait == 'yes', so I think it is whether the primary motivation of the camping trip is for fishing or not. So no?fish == 'yes' means the trip was not just for fishing.
livebait: whether live bait was used or not
camper: whether or not they brought a camper
persons: how many total persons on the trip
child: how many children present
count: number of fish count

Visitors are asked how long they stayed, how many people were in the group, were there children in the group and how many fish were caught. Some visitors do not fish, but there is no data on whether a person fished or not. Some visitors who did fish did not catch any fish so there are excess zeros in the data because of the people that did not fish.

https://stats.idre.ucla.edu/r/dae/zip/