turtle {npsm}

Turtle Data

Description

A data frame containg measurements of 48 turtles. The first three columns are the Length, Width, and Height measurements of the carapace of the turtle. The fourth column is a categorical variable sex with values of female and male. Data are drawn from Johnson and Wichern (2007).

Usage

data(turtle)

Format

48 observations on four variables.

Length

numeric vector.

Width

numeric vector.

Height

numeric vector.

sex

character vector.

References

Johnson, R.A. and Wichern, D.W. (2007), Applied Multivariate Statistical Analysis, 6th ed., Upper Saddle River, NJ: Pearson.

Examples

with(turtle,boxplot(Length~sex))
with(turtle,boxplot(Length~sex,ylab='Length (units)'))