% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data.R
\docType{data}
\name{bird_species.mix}
\alias{bird_species.mix}
\title{Bird Species Mixed Symbolic Dataset}
\format{
A data frame with 3 observations (Swallow, Ostrich, Penguin) and
5 variables:
\itemize{
    \item \code{species}: Species name (character).
    \item \code{flying}: Flying ability (Yes/No, character).
    \item \code{size_l}, \code{size_u}: Size range (cm, Min-Max pair).
    \item \code{migration}: Migratory behavior (TRUE/FALSE, logical).
}
}
\usage{
data(bird_species.mix)
}
\description{
Symbolic data for 3 bird species (Swallow, Ostrich, Penguin) with
interval-valued size, categorical flying, and categorical migration.
Foundational SDA example from 600 individual bird observations.
}
\section{Metadata}{

\tabular{ll}{
  \strong{Sample size (n)} \tab 3 \cr
  \strong{Variables (p)} \tab 5 \cr
  \strong{Subject area} \tab Zoology \cr
  \strong{Symbolic format} \tab Mixed (interval, categorical) \cr
  \strong{Analytical tasks} \tab Descriptive statistics
}
}

\examples{
data(bird_species.mix)
}
\references{
Diday, E. and Noirhomme-Fraiture, M. (Eds.) (2008). \emph{Symbolic Data
Analysis and the SODAS Software}. Wiley. Table 1.2, p.6.
}
\keyword{categorical}
\keyword{datasets}
\keyword{interval}
\keyword{mixed}
