turtles: Turtle Carapace measurements (Jolicoeur and Mosimann)

In Flury: Data Sets from Flury, 1997

Description

Measurements on the turtle carapace of 24 male and 24 female painted turtles (Chrysemys picta marginata).

Usage

data(turtles)

Format

'turtle.carapace' is a data frame with 48 observations on the following 4 variables.

Gender

a factor with levels Male Female

Length

carapace length

Width

carapace width

Height

carapace height

Source

Jolicoeur, P. and J.E. Mosimann (1960) “Size and Shape Variation in the Painted Turtle: A Principal Component Analysis”, Growth, 24:339-354

References

Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer

Examples

data(turtles)
## Not run: 
pairs(turtles[,-1],
  lower.panel = function(x, y){ points(x, y,
  pch = unclass(turtles[,1]),
  col = as.numeric(turtles[,1]))},
  main = "Pairwise scatter plots for painted turtles")
## End(Not run)

Example output

Flury documentation built on May 1, 2019, 6:50 p.m.