

   TThhee CClloouudd PPooiinntt DDaattaa

   DDeessccrriippttiioonn::

        The cloud point of a liquid is a measure of the degree
        of crystalization in a stock that can be measured by
        the refractive index.  It has been suggested that the
        percentage of I8 in the base stock is an excellent pre-
        dictor of cloud point using the second or third order
        polynomial.

   DDeettaaiillss::

        The data in the `cloud' data frame were collected on
        stocks with known percentage of I8. The components are
        as follows item{Ispc}{ The known percentage of I8.  }
        item{Cloudpt}{ The cloud point measurement.  }

   CCAATTEEGGOORRYY::

        Polynomial regression. Simple plots.

   SSoouurrccee::

        Draper  Smith, "Applied Regression Analysis", page 162.

