scription-56"><span>Description<a class="copiable-link" href="#Description-56"> &para;</a></span></h4>

<p>Measurements on 48 rock samples from a petroleum reservoir.
</p>
<h4 class="subsubheading" id="Format-55"><span>Format<a class="copiable-link" href="#Format-55"> &para;</a></span></h4>

<dl class="table">
<dt><code class="code">area</code></dt>
<dd><p>Area of pores space, in pixels out of 256 by 256.
</p></dd>
<dt><code class="code">peri</code></dt>
<dd><p>Perimeter in pixels.
</p></dd>
<dt><code class