% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data.R
\docType{data}
\name{chicago_tree}
\alias{chicago_tree}
\title{Chicago Crime - Hierarchy}
\format{
A data.frame with 2,841 rows and 2 columns:
\describe{
  \item{node_id}{Character identifier of each node.}
  \item{parent_id}{Character identifier of the parent node. \code{NA}
    for the root.}
}
}
\source{
Constructed from the leaf-level codes in \code{\link{chicago_crimes}}.
See \code{data-raw/} in the GitHub repository for the build script.
}
\usage{
chicago_tree
}
\description{
Hierarchical classification of crime incidents by type, description and
location group.
}
\details{
4-level tree: Root -> Crime Type -> Description -> Location Group.
2,486 leaf nodes. Leaf node IDs follow the pattern
\code{"<TYPE> | <DESCRIPTION> | <LOCATION>"}.
}
\examples{
data(chicago_tree)
head(chicago_tree)
}
\seealso{
\code{\link{chicago_crimes}}
}
\keyword{datasets}
