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Daily air quality measurements in New York, May to September 1973.
data(airquality)
Contains 6 variables, as follows:
numeric Ozone (ppb).
numeric Solar R (lang).
numeric Wind (mph).
numeric Temperature (degrees F).
numeric Month (1--12).
numeric Day of month (1--31).
Chambers J, Cleveland W, Kleiner B, Tukey P. 1983. Graphical Methods for Data Analysis. Belmont. CA: Wadsworth.
data(airquality) head(airquality)
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