Description Usage Format Source References See Also Examples
Complete data set for problem introduced in ex1123
.
Data from early study designed to explore the relationship between air
pollution and mortality.
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A data frame with 60 observations on the following 17 variables.
City
a character vector indicating the city
Mort
total age-adjusted mortality from all causes
Precip
mean annual precipitation (inches)
Humidity
percent relative humidity (annual average at 1:00pm)
Jantemp
mean January temperature (degrees F)
Julytemp
mean July temperature (degrees F)
Over65
percentage of the population aged 65 years or over
House
population per household
Educ
median number of school years completed for persons 25 years or older
Sound
percentage of the housing that is sound with all facilities
Density
population density (in persons per square mile of urbanized area)
Nonwhite
percentage of population that is nonwhite
Whitecol
percentage of employment in white collar occupations
Poor
percentage of households with annual income under $3,000 in 1960
HC
relative pollution potential of hydrocarbons
NOx
relative pollution potential of oxides of nitrogen
SO2
relative pollution potential of sulfur dioxide
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
McDonald, G.C. and Ayers, J.A. (1978). Some Applications of the “Chernoff Faces”: A Technique for Graphically Representing Multivariate Data in Wang, P.C.C. (ed.) Graphical Representation of Multivariate Data, Academic Press.
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'data.frame': 60 obs. of 17 variables:
$ City : chr "San Jose, CA" "Wichita, KS" "San Diego, CA" "Lancaster, PA" ...
$ Mort : num 791 824 840 844 858 ...
$ Precip : num 13 28 10 43 25 35 60 11 31 15 ...
$ Humidity: num 71 54 61 54 58 54 60 47 61 38 ...
$ Jantemp : num 49 32 55 32 12 46 67 53 24 30 ...
$ Julytemp: num 68 81 70 74 73 85 82 68 72 73 ...
$ Over65 : num 7 7 7.3 10.1 9.2 ...
$ House : num 3.36 3.27 3.11 3.38 3.28 ...
$ Educ : num 12.2 12.1 12.1 9.5 12.1 ...
$ Sound : num 90.7 81 88.9 79.2 83.1 ...
$ Density : num 2702 3665 3033 3214 2095 ...
$ Nonwhite: num 3 7.5 5.9 2.9 2 ...
$ Whitecol: num 51.9 51.6 51 43.7 51.9 ...
$ Poor : num 9.7 13.2 14 12 9.8 ...
$ HC : num 105 4 144 11 20 1 3 648 5 17 ...
$ NOx : num 32 2 66 7 11 1 1 319 3 8 ...
$ SO2 : num 3 1 20 32 26 1 1 130 10 28 ...
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