Gun {nlme} | R Documentation

## Methods for firing naval guns

### 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` `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.

[Package nlme version 3.1-131 Index]