+---------------+-------------------+
| co.transfer   | R Documentation   |
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Carbon Monoxide Transfer
------------------------

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

The ``co.transfer`` data frame has 7 rows and 2 columns. Seven smokers
with chickenpox had their levels of carbon monoxide transfer measured on
entry to hospital and then again after 1 week. The main question being
whether one week of hospitalization has changed the carbon monoxide
transfer factor.

Usage
~~~~~

::

    co.transfer

Format
~~~~~~

This data frame contains the following columns:

``entry``
    Carbon monoxide transfer factor on entry to hospital.

``week``
    Carbon monoxide transfer one week after admittance to hospital.

Source
~~~~~~

The data were obtained from

Hand, D.J., Daly, F., Lunn, A.D., McConway, K.J. and Ostrowski, E (1994)
*A Handbook of Small Data Sets*. Chapman and Hall.

References
~~~~~~~~~~

Davison, A.C. and Hinkley, D.V. (1997) *Bootstrap Methods and Their
Application*. Cambridge University Press.

Ellis, M.E., Neal, K.R. and Webb, A.K. (1987) Is smoking a risk factor
for pneumonia in patients with chickenpox? *British Medical Journal*,
**294**, 1002.
