

   DDaattaa ffrraammee ooff tthhee eeffffeecctt ooff bbuuffffeerr ccoommppoossiittiioonnss oonn DDNNAA
   ssttrraanndd ddiissppllaacceemmeenntt aammpplliiffiiccaattiioonn..

   AArrgguummeennttss::

        KCl: Buffer component.

      MgCl2: Buffer component.

       KPO4: Buffer component.

       dNTP: Buffer component, deoxyribonucleotides.

       lnya: Exponential amplification rate on a log scale,
             i.e. the actual amplification rate.

   SSUUMMMMAARRYY::

        The `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.

   ""DDAATTAA::

        This data frame contains the following columns:

   SSOOUURRCCEE::

        Becton Dickinson Research Center Research Triangle
        Park, NC

   SSeeee AAllssoo::

        tps, krig, nnreg, optim

   EExxaammpplleess::

        tps(BD[,1:4],BD$lnya,scale.type="range") -> fit # fitting a DNA strand
        # displacement amplification  surface to various buffer compositions
        surface(fit)  # plots fitted surface and contours

