%# fields  is a package for analysis of spatial data written for
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\name{BD}
\alias{BD}
\title{
  Data frame of the effect of buffer compositions on DNA strand displacement 
amplification. A 4-d regression data set with 
with replication. This is a useful test data set for exercising function
fitting methods. 
}
\description{
The \code{BD} data frame has 89 rows and 5 columns. There are 89 runs with  
four buffer components (KCL, MgCl2, KP04, dnTP) systematically varied in 
a space-filliing design. The response is the DNA amplification rate.  
}

\format{
This data frame contains the following columns: 

\describe{
\item{KCl}{
Buffer component. 
}
\item{MgCl2}{
Buffer component. 
}
\item{KPO4}{
Buffer component. 
}
\item{dNTP}{
Buffer component, deoxyribonucleotides. 
}
\item{lnya}{
Exponential amplification rate on a log scale, i.e. the actual amplification 
rate. 
}
}
}

\source{
Thanks to Perry Haaland and Michael OConnell.

Becton Dickinson Research Center 
Research Triangle Park, NC 
}
\seealso{
Tps  
}
\examples{
# fitting a DNA strand 
# displacement amplification  surface to various buffer compositions 
fit<- Tps(BD[,1:4],BD$lnya,scale.type="range") 
surface(fit)  # plots fitted surface and contours 
}
\keyword{datasets}
% docclass is function
% Converted by Sd2Rd version 1.21.