+------------+-------------------+
| cabbages   | R Documentation   |
+------------+-------------------+

Data from a cabbage field trial
-------------------------------

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

The ``cabbages`` data set has 60 observations and 4 variables

Usage
~~~~~

::

    cabbages

Format
~~~~~~

This data frame contains the following columns:

``Cult``
    Factor giving the cultivar of the cabbage, two levels: ``c39`` and
    ``c52``.

``Date``
    Factor specifying one of three planting dates: ``d16``, ``d20`` or
    ``d21``.

``HeadWt``
    Weight of the cabbage head, presumably in kg.

``VitC``
    Ascorbic acid content, in undefined units.

Source
~~~~~~

Rawlings, J. O. (1988) *Applied Regression Analysis: A Research Tool.*
Wadsworth and Brooks/Cole. Example 8.4, page 219. (Rawlings cites the
original source as the files of the late Dr Gertrude M Cox.)

References
~~~~~~~~~~

Venables, W. N. and Ripley, B. D. (1999) *Modern Applied Statistics with
S-PLUS.* Third Edition. Springer.
