Ozone: Ozone data

Description Format Source Examples

Description

A data frame with 203 observations on 13 variables, each observation is one day. Original data is modified to delete all the missing values.

Format

“ozone” being the outcome variable, other 12 variables are independent variables:

month Month: 1 = January, ..., 12 = December
daymonth Day of month
dayweek Day of week: 1 = Monday, ..., 7 = Sunday
ozone Daily maximum one-hour-average ozone reading
press 500 millibar pressure height (m) measured at Vandenberg AFB
wind Wind speed (mph) at Los Angeles International Airport (LAX)
humid Humidity (%) at LAX
tempS Temperature (degrees F) measured at Sandburg, CA
tempE Temperature (degrees F) measured at El Monte, CA
ibht Inversion base height (feet) at LAX
pressg Pressure gradient (mm Hg) from LAX to Daggett, CA
ibtemp Inversion base temperature (degrees F) at LAX
vis Visibility (miles) measured at LAX

Source

Leo Breiman, Department of Statistics, UC Berkeley. Data used in Leo Breiman and Jerome H. Friedman (1985), Estimating optimal transformations for multiple regression and correlation, J. Amer. Stat. Assoc., 80, 580 – 598.

Examples

1
data(Ozone, package = "modelSampler")

tanujitdey/modelSampler documentation built on May 5, 2019, 11:01 p.m.