sniffer: Sniffer data

In alr3: Data to Accompany Applied Linear Regression 3rd Edition

Description

When gasoline is pumped into a tank, hydrocarbon vapors are forced out and into the atmosphere. To reduce this significant source of air pollution, devices are installed to capture the vapor. In testing these vapor recovery systems, a "sniffer" measures the amount recovered. John Rice provided the data for the file sniffer.txt.

Format

This data frame contains the following columns:

TankTemp

Initial tank temperature (degrees F)

GasTemp

Temperature of the dispensed gasoline (degrees F)

TankPres

Initial vapor pressure in the tank (psi)

GasPres

Vapor pressure of the dispensed gasoline (psi)

Y

Hydrocarbons emitted (grams)

Source

John Rice

References

Weisberg, S. (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Section 8.3.2.

Examples

head(sniffer)

Example output

Loading required package: car
  TankTemp GasTemp TankPres GasPres  Y
1       28      33     3.00    3.49 22
2       24      48     2.78    3.22 27
3       33      53     3.32    3.42 29
4       29      52     3.00    3.28 29
5       33      44     3.28    3.58 27
6       31      36     3.10    3.26 24

alr3 documentation built on May 2, 2019, 5:20 p.m.