% DASL file http://lib.stat.cmu.edu/DASL/Datafiles/AirPollution.html
%    
% Reference:   Sokal, R.R. and Rohlf, F.J. (1981) Biometry, 2nd edition, San Francisco:  W.H. Freeman, 239.
% Also found in:  Hand, D.J., et al. (1994) A Handbook of Small Data Sets, London:  Chapman & Hall, 20-21.
% Authorization:   Contact Author
% Description:   These data give air pollution and related values for 41 U.S. cities and were collected from U.S. government publications.  The data are means over the years 1969-1971.
% Number of cases:   41
% Variable Names:
% 
% City:   City
% SO2:   Sulfur dioxide content of air in micrograms per cubic meter
% Temp:   Average annual temperature in degrees Fahrenheit
% Man:   Number of manufacturing enterprises employing 20 or more workers
% Pop:   Population size in thousands from the 1970 census
% Wind:   Average annual wind speed in miles per hour
% Rain:   Average annual precipitation in inches
% RainDays:   Average number of days with precipitation per year
% 

@RELATION relation
@ATTRIBUTE 'City'  {"Albany","Albuquerque","Atlanta","Baltimore","Buffalo","Charleston","Chicago","Cincinnati","Cleveland","Columbus","Dallas","Denver","Des Moines","Detroit","Hartford","Houston","Indianapolis","Jacksonville","Kansas City","Little Rock","Louisville","Memphis","Miami","Milwaukee","Minn-St. Paul","Nashville","New Orleans","Norfolk","Omaha","Philadelphia","Phoenix","Pittsburgh","Providence","Richmond","Salt Lake City","San Francisco","Seattle","St. Louis","Washington","Wichita","Wilmington"}
@ATTRIBUTE 'SO2' numeric
@ATTRIBUTE 'Temp' numeric
@ATTRIBUTE 'Man' numeric
@ATTRIBUTE 'Pop' numeric
@ATTRIBUTE 'Wind' numeric
@ATTRIBUTE 'Rain' numeric
@ATTRIBUTE 'RainDays' numeric
@DATA
'Phoenix',10,70.3,213,582,6.0,7.05,36
'Little Rock',13,61.0,91,132,8.2,48.52,100
'San Francisco',12,56.7,453,716,8.7,20.66,67
'Denver',17,51.9,454,515,9.0,12.95,86
'Hartford',56,49.1,412,158,9.0,43.37,127
'Wilmington',36,54.0,80,80,9.0,40.25,114
'Washington',29,57.3,434,757,9.3,38.89,111
'Jacksonville',14,68.4,136,529,8.8,54.47,116
'Miami',10,75.5,207,335,9.0,59.80,128
'Atlanta',24,61.5,368,497,9.1,48.34,115
'Chicago',110,50.6,3344,3369,10.4,34.44,122
'Indianapolis',28,52.3,361,746,9.7,38.74,121
'Des Moines',17,49.0,104,201,11.2,30.85,103
'Wichita',8,56.6,125,277,12.7,30.58,82
'Louisville',30,55.6,291,593,8.3,43.11,123
'New Orleans',9,68.3,204,361,8.4,56.77,113
'Baltimore',47,55.0,625,905,9.6,41.31,111
'Detroit',35,49.9,1064,1513,10.1,30.96,129
'Minn-St. Paul',29,43.5,699,744,10.6,25.94,137
'Kansas City',14,54.5,381,507,10.0,37.00,99
'St. Louis',56,55.9,775,622,9.5,35.89,105
'Omaha',14,51.5,181,347,10.9,30.18,98
'Albuquerque',11,56.8,46,244,8.9,7.77,58
'Albany',46,47.6,44,116,8.8,33.36,135
'Buffalo',11,47.1,391,463,12.4,36.11,166
'Cincinnati',23,54.0,462,453,7.1,39.04,132
'Cleveland',65,49.7,1007,751,10.9,34.99,155
'Columbus',26,51.5,266,540,8.6,37.01,134
'Philadelphia',69,54.6,1692,1950,9.6,39.93,115
'Pittsburgh',61,50.4,347,520,9.4,36.22,147
'Providence',94,50.0,343,179,10.6,42.75,125
'Memphis',10,61.6,337,624,9.2,49.10,105
'Nashville',18,59.4,275,448,7.9,46.00,119
'Dallas',9,66.2,641,844,10.9,35.94,78
'Houston',10,68.9,721,1233,10.8,48.19,103
'Salt Lake City',28,51.0,137,176,8.7,15.17,89
'Norfolk',31,59.3,96,308,10.6,44.68,116
'Richmond',26,57.8,197,299,7.6,42.59,115
'Seattle',29,51.1,379,531,9.4,38.79,164
'Charleston',31,55.2,35,71,6.5,40.75,148
'Milwaukee',16,45.7,569,717,11.8,29.07,123