+-----------+-------------------+
| animals   | R Documentation   |
+-----------+-------------------+

Attributes of Animals
---------------------

Description
~~~~~~~~~~~

This data set considers 6 binary attributes for 20 animals.

Usage
~~~~~

::

    data(animals)

Format
~~~~~~

A data frame with 20 observations on 6 variables:

+----------+-------+------------------+
| [ , 1]   | war   | warm-blooded     |
+----------+-------+------------------+
| [ , 2]   | fly   | can fly          |
+----------+-------+------------------+
| [ , 3]   | ver   | vertebrate       |
+----------+-------+------------------+
| [ , 4]   | end   | endangered       |
+----------+-------+------------------+
| [ , 5]   | gro   | live in groups   |
+----------+-------+------------------+
| [ , 6]   | hai   | have hair        |
+----------+-------+------------------+
+----------+-------+------------------+

All variables are encoded as 1 = ‘no’, 2 = ‘yes’.

Details
~~~~~~~

This dataset is useful for illustrating monothetic (only a single
variable is used for each split) hierarchical clustering.

Source
~~~~~~

Leonard Kaufman and Peter J. Rousseeuw (1990): *Finding Groups in Data*
(pp 297ff). New York: Wiley.

References
~~~~~~~~~~

see Struyf, Hubert & Rousseeuw (1996), in ``agnes``.

Examples
~~~~~~~~

::

    data(animals)
    apply(animals,2, table) # simple overview

    ma <- mona(animals)
    ma
    ## Plot similar to Figure 10 in Struyf et al (1996)
    plot(ma)

