Learn R Programming

Rlab (version 4.0)

ozone: Monthly mean concentrations of ozone.

Description

The ozone data frame has 552 rows and 3 columns. The first column is the mean monthly ozone concentration in Dobson units of the ozone layer at Arosa, Switzerland, from 1926 to 1971.

Arguments

Format

A data frame with 518 observations on the following 3 variables.

ozone

: mean monthly ozone in Dobson units

year

: year in which measurements were taken (4 digits)

month

: month in which measurements were taken (3 letter abbreviation)