LL` the number of rows and columns
will be determined automatically.</p></dd>


<dt>legend_pos</dt>
<dd><p>Position of the legend. One of "top", "right", "bottom", "left". Determines 
to which side the `legend_space` argument applies.</p></dd>


<dt>legend_space</dt>
<dd><p>Space between legend and plot area. The entered number will be used 
as percentage.</p></dd>


<dt>margin_trbl</dt>
<dd><p>Adjusts the size of the outside margin around the plotting area. Default is
`c(t = 2, r = 2, b = 5, l = 2)`. Numbe