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<table width="100%" summary="page for survival"><tr><td>survival</td><td align="right">R Documentation</td></tr></table>

<h2>
Survival of Rats after Radiation Doses
</h2>

<h3>Description</h3>


<p>The <code>survival</code> data frame has 14 rows and 2 columns.
</p>
<p>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.
</p>


<h3>Usage</h3>

<pre>
survival
</pre>


<h3>Format</h3>


<p>This data frame contains the following columns:
</p>

<dl>
<dt><code>dose</code></dt><dd>
<p>The dose of radiation administered (rads).
</p>
</dd>
<dt><code>surv</code></dt><dd>
<p>The survival rate of the batches expressed as a percentage.
</p>
</dd></dl>


<h3>Source</h3>


<p>The data were obtained from
</p>
<p>Efron, B. (1988) Computer-intensive methods in statistical regression.
<EM>SIAM Review</EM>, <B>30</B>, 421&ndash;449.
</p>


<h3>References</h3>


<p>Davison, A.C. and Hinkley, D.V. (1997) 
<EM>Bootstrap Methods and Their Application</EM>. Cambridge University Press.
</p>


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