We discussed hierarchial and K-means clustering using following data from the Carnegie Mellon Statistics Library. The data were collected by the Economic Research Department of the Union Bank of Switzerland. They represent the economic conditions in 48 cities around in world in 1991.
City Work Price Salary Amsterdam 1714 65.6 49.0 Athens 1792 53.8 30.4 Bogota 2152 37.9 11.5 Bombay 2052 30.3 5.3 Brussels 1708 73.8 50.5 Buenos Aires 1971 56.1 12.5 Caracas 2041 61.0 10.9 Chicago 1924 73.9 61.9 Copenhagen 1717 91.3 62.9 Dublin 1759 76.0 41.4 Dusseldorf 1693 78.5 60.2 Frankfurt 1650 74.5 60.4 Geneva 1880 95.9 90.3 Helsinki 1667 113.6 66.6 Hong Kong 2375 63.8 27.8 Houston 1978 71.9 46.3 Johannesburg 1945 51.1 24.0 Kuala Lumpur 2167 43.5 9.9 Lagos 1786 45.2 2.7 Lisbon 1742 56.2 18.8 London 1737 84.2 46.2 Los Angeles 2068 79.8 65.2 Luxembourg 1768 71.1 71.1 Madrid 1710 93.8 50.0 Manila 2268 40.0 4.0 Mexico City 1944 49.8 5.7 Milan 1773 82.0 53.3 Montreal 1827 72.7 56.3 Nairobi 1958 45.0 5.8 New York 1942 83.3 65.8 Nicosia 1825 47.9 28.3 Oslo 1583 115.5 63.7 Panama 2078 49.2 13.8 Paris 1744 81.6 45.9 Rio de Janeiro 1749 46.3 10.5 Sao Paulo 1856 48.9 11.1 Seoul 1842 58.3 32.7 Singpore 2042 64.4 16.1 Stockholm 1805 111.3 39.2 Sydney 1668 70.8 52.1 Taipei 2145 84.3 34.5 Tel Aviv 2015 67.3 27.0 Tokyo 1880 115.0 68.0 Toronto 1888 70.2 58.2 Vienna 1780 78.0 51.3 Zurich 1868 100.0 100.0