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

<h2> Romano-British Pottery Data </h2>

<h3>Description</h3>


<p>Chemical composition of Romano-British pottery.
</p>


<h3>Usage</h3>

<pre>data("pottery")</pre>


<h3>Format</h3>


<p>A data frame with 45 observations on the following 9 chemicals.
</p>

<dl>
<dt>Al2O3</dt><dd><p>aluminium trioxide.</p>
</dd>
<dt>Fe2O3</dt><dd><p>iron trioxide.</p>
</dd>
<dt>MgO</dt><dd><p>magnesium oxide.</p>
</dd>
<dt>CaO</dt><dd><p>calcium oxide.</p>
</dd>
<dt>Na2O</dt><dd><p>natrium oxide.</p>
</dd>
<dt>K2O</dt><dd><p>calium oxide.</p>
</dd>
<dt>TiO2</dt><dd><p>titanium oxide.</p>
</dd>
<dt>MnO</dt><dd><p>mangan oxide.</p>
</dd>
<dt>BaO</dt><dd><p>barium oxide.</p>
</dd>
</dl>



<h3>Details</h3>


<p>The data gives the chemical composition of 
specimens of Romano-British pottery, determined by atomic 
absorption spectrophotometry, for nine oxides.
</p>


<h3>Source</h3>


<p>A. Tubb and N. J. Parker and G. Nickless (1980),
The analysis of Romano-British pottery by atomic
absorption spectrophotometry. <EM>Archaeometry</EM>, <B>22</B>, 
153&ndash;171.
</p>


<h3>Examples</h3>

<pre>

  data("pottery", package = "HSAUR")
  plot(pottery)

</pre>


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