R: Zoo Data

Zoo {mlbench} | R Documentation

## Zoo Data

### Description

A simple dataset containing 17 (mostly logical) variables on 101 animals.

### Usage

    data(Zoo)

### Format

A data frame with 17 columns: hair, feathers, eggs, milk, airborne, aquatic, predator, toothed, backbone, breathes, venomous, fins, legs, tail, domestic, catsize, type.

Most variables are logical and indicate whether the corresponding animal has the corresponsing characteristic or not. The only 2 exceptions are: `legs` takes values 0, 2, 4, 5, 6, and 8. `type` is a grouping of the animals into 7 groups, see the example section for the detailed list.

### Details

Ask the original donor of the data why girl is an animal.

### Source

The original data have been donated by Richard S. Forsyth to the UCI Repository Of Machine Learning Databases at

- http://www.ics.uci.edu/~mlearn/MLRepository.html.

and were converted to R format by Friedrich Leisch.

### References

Newman, D.J. & Hettich, S. & Blake, C.L. & Merz, C.J. (1998). UCI Repository of machine learning databases [http://www.ics.uci.edu/~mlearn/MLRepository.html]. Irvine, CA: University of California, Department of Information and Computer Science.

### Examples

    data(Zoo)
    summary(Zoo)

    ## see the annimals grouped by type
    tapply(rownames(Zoo), Zoo$type, function(x) x)

    ## which animals have fins?
    rownames(Zoo)[Zoo$fins]

[Package mlbench version 2.1-1 Index]