| % File src/library/datasets/man/swiss.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2019 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{swiss} |
| \docType{data} |
| \alias{swiss} |
| \title{Swiss Fertility and Socioeconomic Indicators (1888) Data} |
| \description{ |
| Standardized fertility measure and socio-economic indicators for each |
| of 47 French-speaking provinces of Switzerland at about 1888. |
| } |
| \usage{swiss} |
| \format{ |
| A data frame with 47 observations on 6 variables, \emph{each} of which |
| is in percent, i.e., in \eqn{[0, 100]}. |
| |
| \tabular{rll}{ |
| [,1] \tab Fertility \tab \eqn{I_g}{Ig}, |
| \sQuote{common standardized fertility measure}\cr |
| [,2] \tab Agriculture\tab \% of males involved in agriculture |
| as occupation\cr |
| [,3] \tab Examination\tab \% draftees receiving highest mark |
| on army examination\cr |
| [,4] \tab Education \tab \% education beyond primary school for draftees.\cr |
| [,5] \tab Catholic \tab \% \sQuote{catholic} (as opposed to \sQuote{protestant}).\cr |
| [,6] \tab Infant.Mortality\tab live births who live less than 1 |
| year. |
| } |
| |
| All variables but \sQuote{Fertility} give proportions of the |
| population. |
| } |
| \details{ |
| (paraphrasing Mosteller and Tukey): |
| |
| Switzerland, in 1888, was entering a period known as the |
| \emph{demographic transition}; i.e., its fertility was beginning to |
| fall from the high level typical of underdeveloped countries. |
| |
| The data collected are for 47 French-speaking \dQuote{provinces} at |
| about 1888. |
| |
| Here, all variables are scaled to \eqn{[0, 100]}, where in the |
| original, all but \code{"Catholic"} were scaled to \eqn{[0, 1]}. |
| } |
| \source{ |
| Project \dQuote{16P5}, pages 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 their source as |
| \dQuote{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 Unpublished data |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.} |
| } |
| \references{ |
| Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) |
| \emph{The New S Language}. |
| Wadsworth & Brooks/Cole. |
| } |
| \note{ |
| Files for all 182 districts in 1888 and other years have been available at |
| \url{https://opr.princeton.edu/archive/pefp/switz.aspx}. |
| |
| They state that variables \code{Examination} and \code{Education} |
| are averages for 1887, 1888 and 1889. |
| } |
| \examples{ |
| require(stats); require(graphics) |
| pairs(swiss, panel = panel.smooth, main = "swiss data", |
| col = 3 + (swiss$Catholic > 50)) |
| summary(lm(Fertility ~ . , data = swiss)) |
| } |
| \keyword{datasets} |