+------------+-------------------+
| survival   | R Documentation   |
+------------+-------------------+

Survival of Rats after Radiation Doses
--------------------------------------

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

The ``survival`` data frame has 14 rows and 2 columns.

The data measured the survival percentages of batches of rats who were
given varying doses of radiation. At each of 6 doses there were two or
three replications of the experiment.

Usage
~~~~~

::

    survival

Format
~~~~~~

This data frame contains the following columns:

``dose``
    The dose of radiation administered (rads).

``surv``
    The survival rate of the batches expressed as a percentage.

Source
~~~~~~

The data were obtained from

Efron, B. (1988) Computer-intensive methods in statistical regression.
*SIAM Review*, **30**, 421â€“449.

References
~~~~~~~~~~

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