ozone1 {earth}R Documentation

Ozone Readings in Los Angeles with Incomplete Cases Removed

Description

Ozone readings in Los Angeles, with incomplete cases removed.

Format

O3
daily maximum of the hourly average ozone concentrations in Upland, CA.
vh
500 millibar pressure height, measured at the Vandenberg air force base.
wind
wind speed in mph at LAX airport.
humidity
humidity in percent at LAX.
temp
Sandburg Air Force Base temperature in degrees Fahrenheit.
ibh
temperature inversion base height in feet.
dpg
pressure gradient from LAX to Daggert in mm Hg.
ibt
inversion base temperature at LAX in degrees Fahrenheit.
vis
visibility at LAX in miles.
doy
day of the year.

Source

This data set was copied from library(faraway) and the name changed to ozone1 to prevent a name clash. The data were originally made available by Leo Breiman who was a consultant on a project where the data were generated. Example analyses using these data may be found in Faraway and in Hastie and Tibshirani.

    > ozone1
        O3   vh wind humidity temp  ibh dpg ibt vis doy
    1    3 5710    4       28   40 2693 -25  87 250  33
    2    5 5700    3       37   45  590 -24 128 100  34
    3    5 5760    3       51   54 1450  25 139  60  35
    ...
    330  1 5550    4       85   39 5000   8  44 100 390

References

Faraway (2005) Extending the Linear Model with R http://www.maths.bath.ac.uk/~jjf23

Hastie and Tibshirani (1990) Generalized Additive Models http://www-stat.stanford.edu/~hastie/pub.htm


[Package earth version 1.1-4 Index]