Function ships 

pub fn ships() -> Result<DataFrame, PolarsError>

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