r" href="#arg-decimate"></a></dt>
<dd><p>An indication of the desired decimation,
passed to <code><a href="imagep.html">imagep()</a></code> for image plots.
The default yields faster plotting.  Some decimation is sensible for
full-size images, since no graphical displays can show 16 thousand pixels
on a side.</p></dd>


<dt id="arg-zlim">zlim<a class="anchor" aria-label="anchor" href="#arg-zlim"></a></dt>
<dd><p>Either a pair of numbers giving the limits for the colorscale,
or <code>"histogram"</code> to ha