ozone {cosso}

Ozone pollution data in Los Angels, 1976

Description

This is the ozone data used in Breiman and Friedman (1985). This dataset contains 330 observations, and each observation is a daily measurement.

Usage

data(ozone)

Format

ozone	Ozone reading
temp	Temperature (degree C). minimum 25 and maximum 93 in original scale.
invHt	Inversion base height (feet). minimum 111 and maximum 5000 in original scale.
press	Pressure gradient (mm Hg). minimum -69 and maximum 107 in original scale.
vis	Visibility (miles). minimum 0 and maximum 350 in original scale.
milPress	500 millibar pressure height (m). minimum 5320 and maximum 5950 in original scale.
hum	Humidity (percent). minimum 19 and maximum 93.
invTemp	Inversion base temperature (degrees F). minimum -25 and maximum 332 in original scale.
wind	Wind speed (mph). minimum 0 and maximum 21 in original scale.

Details

All the variables, except for the response, have been scaled to [0,1] interval. To transform back to the original scale, use the formula:

x=min+(max-min)*z.

Source

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