https://github.com/cran/lattice
Raw File
Tip revision: 7260a442af408c02cce1a42cb22e838ebb27ea9e authored by Deepayan Sarkar on 07 July 2015, 00:00:00 UTC
version 0.20-33
Tip revision: 7260a44
singer.Rd
\name{H_singer}
\alias{singer}
\docType{data}
\title{ Heights of New York Choral Society singers }

\description{
  Heights in inches of the singers in the New York Choral Society in
  1979.  The data are grouped according to voice part.  The vocal range
  for each voice part increases in pitch according to the following
  order: Bass 2, Bass 1, Tenor 2, Tenor 1, Alto 2, Alto 1, Soprano 2,
  Soprano 1.
}

\usage{singer}

\format{
  A data frame with 235 observations on the following 2 variables.
  \describe{
    \item{height}{Height in inches of the singers.}
    \item{voice.part}{(Unordered) factor with levels "\code{Bass 2}",
      "\code{Bass 1}", "\code{Tenor 2}", "\code{Tenor 1}", "\code{Alto 2}",
      "\code{Alto 1}", "\code{Soprano 2}", "\code{Soprano 1}".}
  }
}

\source{
  Chambers, J.M., W. S. Cleveland, B. Kleiner, and P. A. Tukey. (1983).
  \emph{Graphical Methods for Data Analysis}.  Chapman and Hall, New York.
}

\author{
  Documentation contributed by Kevin Wright.
}

\references{
  Cleveland, William S. (1993) \emph{Visualizing Data}.  Hobart Press,
  Summit, New Jersey.
}

\examples{
# Separate histogram for each voice part (Figure 1.2 from Cleveland)
histogram(~ height | voice.part,
          data = singer,
          aspect=1,
          layout = c(2, 4), 
          nint=15,
          xlab = "Height (inches)")

# Quantile-Quantile plot (Figure 2.11 from Cleveland)
qqmath(~ height | voice.part,
       data=singer,
       aspect=1, 
       layout=c(2,4),
       prepanel = prepanel.qqmathline,
       panel = function(x, ...) {
         panel.grid()
         panel.qqmathline(x, ...)
         panel.qqmath(x, ...)
       },
       xlab = "Unit Normal Quantile",
       ylab="Height (inches)")
}

\keyword{datasets}
back to top