Mammal sleep data

Description

Sleep data with missing values.

Usage

data(sleep)

Format

A data frame with 62 observations on the following 10 variables.

BodyWgt

a numeric vector

BrainWgt

a numeric vector

NonD

a numeric vector

Dream

a numeric vector

Sleep

a numeric vector

Span

a numeric vector

Gest

a numeric vector

Pred

a numeric vector

Exp

a numeric vector

Danger

a numeric vector

Source

Allison, T. and Chichetti, D. (1976) Sleep in mammals: ecological and constitutional correlates. Science 194 (4266), 732–734.

The data set was imported from GGobi.

Examples

data(sleep, package = "VIM")
summary(sleep)
aggr(sleep)