Refinery.CO.df:
Carbon Monoxide Emissions from Oil Refinery.
Description
Carbon monoxide (CO) emissions (ppm) from an oil refinery near San Francisco.
The refinery submitted 31 daily measurements from its stack for the period
April 16, 1993 through May 16, 1993 to the Bay Area Air Quality Management
District (BAAQMD). The BAAQMD made nine of its own indepent measurements for
the period September 11, 1990 through March 30, 1993.
Usage
data(Refinery.CO.df)
Format
A data frame with 40 observations on the following 3 variables.
CO.ppm
- a numeric vector of CO emissions (ppm)
Source
- a factor indicating the source of the measurment (
BAAQMD
or refinery
Date
- a Date object indicating the date the measurement was taken
Source
Data and Story Library, http://lib.stat.cmu.edu/DASL/Datafiles/Refinery.html.References
Zou, G.Y., C.Y. Huo, and J. Taleban. (2009). Simple Confidence Intervals for
Lognormal Means and their Differences with Environmental Applications.
Environmetrics, 20, 172--180.