R: Lifeboats on the Titanic

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 1.4-4 Index]