+---------+-------------------+
| caith   | R Documentation   |
+---------+-------------------+

Colours of Eyes and Hair of People in Caithness
-----------------------------------------------

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

Data on the cross-classification of people in Caithness, Scotland, by
eye and hair colour. The region of the UK is particularly interesting as
there is a mixture of people of Nordic, Celtic and Anglo-Saxon origin.

Usage
~~~~~

::

    caith

Format
~~~~~~

A 4 by 5 table with rows the eye colours (blue, light, medium, dark) and
columns the hair colours (fair, red, medium, dark, black).

Source
~~~~~~

Fisher, R.A. (1940) The precision of discriminant functions. *Annals of
Eugenics (London)* **10**, 422â€“429.

References
~~~~~~~~~~

Venables, W. N. and Ripley, B. D. (2002) *Modern Applied Statistics with
S.* Fourth edition. Springer.

Examples
~~~~~~~~

::

    corresp(caith)
    dimnames(caith)[[2]] <- c("F", "R", "M", "D", "B")
    par(mfcol=c(1,3))
    plot(corresp(caith, nf=2)); title("symmetric")
    plot(corresp(caith, nf=2), type="rows"); title("rows")
    plot(corresp(caith, nf=2), type="col"); title("columns")
    par(mfrow=c(1,1))

