noiris: Data sets

#' Fish data.
#'
#' State wildlife biologists want to model how many fish are being caught by
#' fishermen at a state park.
#'
#' @format A tibble of 250 rows and 6 columns.  Good for demonstrating zero-inflated models.
#' \describe{
#'   \item{nofish}{I've never seen this explained.  Originally 0 and 1, 0 is
#'   equivalent to \code{livebait == 'yes'}, so I think it is whether the
#'   primary motivation of the camping trip is for fishing or not.  So
#'   \code{no?fish == 'yes'} means the trip was not just for fishing.}
#'   \item{livebait}{whether live bait was used or not}
#'   \item{camper}{whether or not they brought a camper}
#'   \item{persons}{how many total persons on the trip}
#'   \item{child}{how many children present}
#'   \item{count}{number of fish count}
#' }
#'
#' @details  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.
#'
#' @source \url{https://stats.idre.ucla.edu/r/dae/zip/}
#' @examples
#' library(noiris)
#' str(fish)

"fish"