These data record the level of atmospheric ozone concentration from eight daily meteorological measurements made in the Los Angeles basin in 1976. Although measurements were made every day that year, some observations were missing; here we have the 330 complete cases. The response, referred to as ozone, is actually the log of the daily maximum of the hourly-average ozone concentrations in Upland, California.

Detailed variable names:

- ozone : Upland Maximum Ozone

vh : Vandenberg 500 mb Height - wind : Wind Speed (mph)

humidity : Humidity (%) - temp : Sandburg AFB Temperature

ibh : Inversion Base Height - dpg : Daggot Pressure Gradient

ibt : Inversion Base Temperature - vis : Visibility (miles)

doy : Day of the Year

Source: http://www-stat.stanford.edu/~tibs/ElemStatLearn/data.html