Description

Complete data set for problem introduced in ex1123. Data from early study designed to explore the relationship between air pollution and mortality.

Usage

Format

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

Source

Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.

References

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.

See Also

ex1123

Examples