gun
Speed of Firing Naval Guns
Description
The gun data frame, a design object, has 36 rows representing
runs of a team of 3 men loading and firing naval guns attempting to
get off as many rounds per minute as possible. The three predictor
variables (columns) specify the team and the physique of the men on it and the
loading method used; the outcome variable is the rounds fired per minute.
Arguments
| Method |
factor giving one of two methods for loading rounds into Naval guns.
Levels are M1 and M2 .
|
| Physique |
an ordered factor giving the physique of the men: S for slight, A
for average, and H for heavy.
|
| Team |
factor with levels T1 , T2 or T3 . In fact there are nine
teams, three of each physique, i.e. a slight T1 , an average T1 ,
and a heavy T1 , etc.
|
| Rounds |
numeric vector giving the number of rounds per minute fired by a team.
|
Source
Hicks, C. R. (1973) Fundamental Concepts in the Design of Experiments.
Holt, Rinehart and Wilson, New York, p. 194.
John M. Chambers and Trevor J. Hastie, (eds.) Statistical Models in S,
Wadsworth and Brooks, Pacific Grove, CA 1992, pg. 152.
Examples
data(gun)
gunaov <- aov(Rounds ~ Method + Physique/Team, data=gun)