Lifeboats {vcd} | R Documentation

## Lifeboats on the Titanic

### Description

Data from Mersey (1912) about the 18 (out of 20) lifeboats launched before the sinking of the S. S. Titanic.

### Usage

    data(Lifeboats)

### Format

A data frame with 18 observations and 8 variables.

launch
  launch time in `"POSIXt"` format.
side
  factor. Side of the boat.
boat
  factor indicating the boat.
crew
  number of male crew members on board.
men
  number of men on board.
women
  number of women (including female crew) on board.
total
  total number of passengers.
cap
  capacity of the boat.

### Source

M. Friendly (2000), Visualizing Categorical Data: http://euclid.psych.yorku.ca/ftp/sas/vcd/catdata/lifeboat.sas

### References

L. Mersey (1912), Report on the loss of the “Titanic” (S. S.). Parliamentary command paper 6452.

M. Friendly (2000), Visualizing Categorical Data. SAS Institute, Cary, NC.

### Examples

    data(Lifeboats)
    attach(Lifeboats)
    ternaryplot(
      Lifeboats[,4:6],
      pch = ifelse(side == "Port", 1, 19),
      col = ifelse(side == "Port", "red", "blue"),
      id  = ifelse(men / total > 0.1, as.character(boat), NA),
      prop_size = 2,
      dimnames_position = "edge",
      main = "Lifeboats on the Titanic"
    )
    grid_legend(0.8, 0.9, c(1, 19), c("red", "blue"),
      c("Port", "Starboard"), title = "SIDE")
    detach(Lifeboats)

[Package vcd version 0.9-6 Index]