ships {MASS} | R Documentation

## Ships Damage Data

### Description

Data frame giving the number of damage incidents and aggregate months of service by ship type, year of construction, and period of operation.

### Usage

    ships

### Format

`type`
  type: `"A"` to `"E"`.
`year`
  year of construction: 1960–64, 65–69, 70–74, 75–79 (coded as `"60"`, `"65"`, `"70"`, `"75"`).
`period`
  period of operation : 1960–74, 75–79.
`service`
  aggregate months of service.
`incidents`
  number of damage incidents.

### Source

P. McCullagh and J. A. Nelder, (1983), Generalized Linear Models. Chapman & Hall, section 6.3.2, page 137

[Package MASS version 7.2-49 Index]