agriculture             package:cluster             R Documentation

European Union Agricultural Workforces

Description:

     Gross National Product (GNP) per capita and percentage of the
     population working in agriculture for each country belonging to
     the European Union in 1993.

Usage:

     data(agriculture)

Format:

     A data frame with 12 observations on 2 variables:

       [ , 1]  'x'  numeric  per capita GNP
       [ , 2]  'y'  numeric  percentage in agriculture

     The row names of the data frame indicate the countries.

Details:

     The data seem to show two clusters, the ``more agricultural'' one
     consisting of Greece, Portugal, Spain, and Ireland.

Source:

     Eurostat (European Statistical Agency, 1994): _Cijfers en feiten:
     Een statistisch portret van de Europese Unie_.

References:

     Anja Struyf, Mia Hubert & Peter J. Rousseeuw (1996): Clustering in
     an Object-Oriented Environment. _Journal of Statistical Software_,
     *1*. <URL: http://www.stat.ucla.edu/journals/jss/>

See Also:

     'agnes', 'daisy', 'diana'.

Examples:

     data(agriculture)

     ## Compute the dissimilarities using Euclidean metric and without
     ## standardization
     daisy(agriculture, metric = "euclidean", stand = FALSE)

     ## 2nd plot is similar to Figure 3 in Struyf et al (1996)
     plot(pam(agriculture, 2))

     ## Plot similar to Figure 7 in Struyf et al (1996)
     ## Not run: plot(agnes(agriculture), ask = TRUE)


     ## Plot similar to Figure 8 in Struyf et al (1996)
     ## Not run: plot(diana(agriculture), ask = TRUE)

