Gun: Methods for firing naval guns

In MEMSS: Data Sets from Mixed-Effects Models in S

Description

The Gun data frame has 36 rows and 4 columns.

Format

This data frame contains the following columns:

rounds

a numeric vector

Method

a factor with levels M1 and M2

Team

an ordered factor with levels T1S < T3S < T2S < T1A < T2A < T3A < T1H < T3H < T2H

Physique

an ordered factor with levels Slight < Average < Heavy

Details

Hicks (p.180, 1993) reports data from an experiment on methods for firing naval guns. Gunners of three different physiques (slight, average, and heavy) tested two firing methods. Both methods were tested twice by each of nine teams of three gunners with identical physique. The response was the number of rounds fired per minute.

Source

Hicks, C. R. (1993), Fundamental Concepts in the Design of Experiments (4th ed), Harcourt Brace, New York.

Examples

str(Gun)

Example output

Loading required package: lme4
Loading required package: Matrix

Attaching package: 'MEMSS'

The following objects are masked from 'package:datasets':

    CO2, Orange, Theoph

'data.frame':	36 obs. of  4 variables:
 $ rounds  : num  20.2 14.2 22 14.1 23.1 14.1 26.2 18 22.6 14 ...
 $ Method  : Factor w/ 2 levels "M1","M2": 1 2 1 2 1 2 1 2 1 2 ...
 $ Team    : Factor w/ 9 levels "T1A","T1H","T1S",..: 3 3 1 1 2 2 6 6 4 4 ...
 $ Physique: Ord.factor w/ 3 levels "Slight"<"Average"<..: 1 1 2 2 3 3 1 1 2 2 ...

MEMSS documentation built on May 2, 2019, 1:05 p.m.