

   airquality {base}                            R Documentation

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   DDeessccrriippttiioonn::

        Daily air quality measurements in New York. May to
        September 1973.

   UUssaaggee::

        data(airquality)

   FFoorrmmaatt::

        A data frame with 154 observations on 6 variables.

         [,1]      Ozone        numeric      Ozone (ppb)
         [,2]      Solar.R      numeric      Solar R (lang)
         [,3]      Wind         numeric      Wind (mph)
         [,4]      Temp         numeric      Temperature (degrees F)
         [,5]      Month        numeric      Month 1-12
         [,6]      Day          numeric      Day of month 1-31

   DDeettaaiillss::

        Daily readings of the following air quality values for
        May 1, 1973 (a Tuesday) to September 30, 1973.

           * `Ozone': Mean ozone in parts per billion from 1300
             to 1500 hours at Roosevelt Island

           * `Solar.R': Solar radiation in Langleys in the fre-
             quency band 4000-7700 Angstroms from 0800 to 1200
             hours at Central Park

           * `Wind': Average wind speed in miles per hour at
             0700 and 1000 hours at LaGuardia Airport

           * `Temp': Maximum daily temperature in degrees
             Fahrenheit at La Guardia Airport.

   SSoouurrccee::

        The data were obtained from the New York State Depart-
        ment of Conservation (ozone data) and the National
        Weather Service (meteorological data).

   RReeffeerreenncceess::

        Chambers, J. M., W. S. Cleveland, B. Kleiner and P. A.
        Tukey (1983).  Graphical Methods for Data Analysis.
        Belmont, CA: Wadsworth.

   EExxaammpplleess::

        data(airquality)
        pairs(airquality, panel = panel.smooth, main = "airquality data")

