% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data.R
\docType{data}
\name{environment.mix}
\alias{environment.mix}
\title{EPA Environmental Data Mixed Symbolic Dataset}
\format{
A symbolic data frame (\code{symbolic_tbl}, of class
\code{c("symbolic_tbl", "tbl_df", "tbl", "data.frame")}) with 14
observations and 17 variables. The first four are modal-valued
(\code{symbolic_modal}) variables and the remaining thirteen are
interval-valued (\code{symbolic_interval}) variables. This matches the
structure of \code{ggInterval::Environment}.
\itemize{
    \item \code{URBANICITY}: Modal-valued urbanicity distribution (modal).
    \item \code{INCOMELEVEL}: Modal-valued income level distribution (modal).
    \item \code{EDUCATION}: Modal-valued education distribution (modal).
    \item \code{REGIONDEVELOPME}: Modal-valued regional development distribution (modal).
    \item \code{CONTROL}: Environmental control index range (interval).
    \item \code{SATISFY}: Satisfaction index range (interval).
    \item \code{INDIVIDUAL}: Individual concern index range (interval).
    \item \code{WELFARE}: Welfare index range (interval).
    \item \code{HUMAN}: Human impact index range (interval).
    \item \code{POLITICS}: Political concern index range (interval).
    \item \code{BURDEN}: Burden index range (interval).
    \item \code{NOISE}: Noise pollution index range (interval).
    \item \code{NATURE}: Nature preservation index range (interval).
    \item \code{SEASETC}: Seas/coastal index range (interval).
    \item \code{MULTI}: Multi-indicator range (interval).
    \item \code{WATERWASTE}: Water/waste index range (interval).
    \item \code{VEHICLE}: Vehicle emissions index range (interval).
}
}
\source{
Extracted from the ggInterval package (\code{Environment}).
}
\usage{
data(environment.mix)
}
\description{
Mixed symbolic dataset from the US EPA with 14 state-group observations
and 17 variables of mixed types: interval-valued environmental measurements
and modal-valued (distributional) categorical variables.
}
\section{Metadata}{

\tabular{ll}{
  \strong{Sample size (n)} \tab 14 \cr
  \strong{Variables (p)} \tab 17 \cr
  \strong{Subject area} \tab Environment \cr
  \strong{Symbolic format} \tab Mixed (interval, modal) \cr
  \strong{Analytical tasks} \tab Descriptive statistics, Clustering
}
}

\examples{
data(environment.mix)
}
\references{
Jiang, B.-S. and Wu, H.-M. (2025). ggInterval: an R package for
visualizing interval-valued data using ggplot2. R package version 0.2.5.
\url{https://CRAN.R-project.org/package=ggInterval}
}
\keyword{datasets}
\keyword{interval}
\keyword{mixed}
\keyword{modal}
