span><a class="headerlink" href="#id7" title="Link to this image">¶</a></p>
</figcaption>
</figure>
<p>In rare circumstances, you <em>need</em> to create a copy of your data
(I think there is only one case where this is true:
when you
need to process the same data in parallel in two different ways to generate two results,
and then perform math that uses both results).
For these cases, you can use an easy shortcut for the copy method: <cite>C</cite> (as in <cite>data.C</cite>).</p>
<p>Note that, if all else