\Header{swiss}{Swiss Fertility and Socioeconomic Indicators (1888) Data}
\keyword{datasets}{swiss}
\begin{Usage}
\begin{verbatim}data(swiss)\end{verbatim}
\end{Usage}
\begin{Format}
A data frame with 47 observations on 6 variables, \emph{each} of
which is in percent, i.e., in \eqn{[0,100]}{}.

\Tabular{cll}{
[,1] & Fertility & \eqn{I_g}{Ig}, ``common standardized
fertility measure''\\{}
[,2] & Agriculture& \% involved in agriculture as occupation\\{}
[,3] & Examination& \% ``draftees'' receiving highest mark\\{}
& & on army examination\\{}
[,4] & Education & \% education beyond primary school.\\{}
[,5] & Catholic & \% catholic (as opposed to "protestant").\\{}
[,6] & Infant.Mortality& live births who live less than 1
year.\\{}
}

All variables but `Fertility' give proportions of the population.\end{Format}
\begin{Description}
(paraphrasing Mosteller and Tukey):

Switzerland, in 1888, was entering a  period known as the
``demographic transition''; i.e., its fertility was beginning to
fall from the high level typical of underdeveloped countries.

The data collected are for 47 seven French-speaking ``provinces'' at
about 1888.

Here, all variables are scaled to \eqn{[0,100]}{}, where in the
original, all but \texttt{"Catholic"} were scaled to \eqn{[0,1]}{}.\end{Description}
\begin{Source}
Project ``16P5'', pp.549-551 in \\{}
Mosteller, F. and Tukey, J. W. (1977).
\emph{Data Analysis and Regression: A Second Course in Statistics},
Addison-Wesley, Reading Mass.

indicating \bold{Source} as\\{}
``Data used by permission of Franice van de Walle. Office of
Population Research, Princeton University, 1976.\\{}
Unpublished data assembled under NICHD contract number No
1-HD-O-2077.''\end{Source}
\begin{Examples}
\begin{ExampleCode}
data(swiss)
pairs(swiss)
summary(lm(Fertility ~ . , data = swiss))
\end{ExampleCode}
\end{Examples}

