How to define a factor as being above or below its median in R?
<p>So I need to create a factor that defines my 'alt' variable (altitude) as being above or below its median.</p>

<p>I know it should follow this basic shape of creating something new:</p>

<pre><code>conservation$alt.factor &lt;- conservation$alt (..????...)
</code></pre>

<p>But I'm just struggling with that last bit.</p>

<p>There must be simple command out there!</p>