\name{sparks}
\alias{sparks}
\title{Sparks' labeling algorithm}
\usage{
  sparks(dmin, dmax, m)
}
\arguments{
  \item{dmin}{minimum of the data range}

  \item{dmax}{maximum of the data range}

  \item{m}{number of axis labels}
}
\value{
  vector of axis label locations
}
\description{
  Sparks' labeling algorithm
}
\author{
  Justin Talbot \email{justintalbot@gmail.com}
}
\references{
  Sparks, D. N. (1971) AS 44. Scatter Diagram Plotting,
  Journal of the Royal Statistical Society. Series C., pp.
  327-331.
}