ozone {bfp}

Ozone data from Breiman and Friedman, 1985

Description

This is the Ozone data discussed in Breiman and Friedman (JASA, 1985, p. 580). These data are for 330 days in 1976. All measurements are in the area of Upland, CA, east of Los Angeles.

Usage

data(ozone)

Format

A data frame with 366 observations on the following 13 variables.

month

month of the year

day

day of the month

weekday

day of the week: a factor with levels Monday, Tueday, Wednesday, Thursday, Friday, Saturday, Sunday

hourAverageMax

maximum 1-hour average ozone level [ppm]

pressure500Height

500 millibar pressure height [meters]

windSpeed

wind speed [mph]

humidity

relative humidity [%]

tempSandburg

temperature at Sandberg, CA [degrees F]

tempElMonte

temperature at El Monte, CA [degrees F]

inversionBaseHeight

inversion base height [feet]

pressureGradientDaggett

pressure gradient from LAX to Daggett, CA [mm Hg]

inversionBaseTemp

inversion base temperature [degrees F]

visibility

visibility [miles]

Source

Breiman, L and Friedman, J. (1985), “Estimating Optimal Transformations for Multiple Regression and Correlation”, Journal of the American Statistical Association, 80, 580-598.