\name{pigs}
\title{The Effect of Vitamin C on Tooth Growth in Guinea Pigs}
\usage{data(pigs)}
\alias{pigs}
\format{A data frame with 60 observations on 3 variables.
  \tabular{rlll}{
    [,1]  \tab len   \tab numeric  \tab Tooth length\cr
    [,2]  \tab supp  \tab factor   \tab Supplement (VC or OJ).\cr
    [,3]  \tab dose  \tab numeric  \tab Dose in milligrams.
  }
}
\source{C. I. Bliss (1952).  The Statistics of Bioassay, Academic Press.
}
\description{The response is the average length of odontoblasts (teeth) in
each of 10 guinea pigs.  Three dose levels 0.5, 1, and 2 mg
of juice and acid in the juice were used.

This makes no sense - check the original source.
}
\references{McNeil, D. R. (1977).  Interactive Data Analysis.  New York: Wiley.
}
\keyword{datasets}
