 in the univariate case, or a
matrix in the multivariate case where each column is a trait.</p></dd>


<dt>sp</dt>
<dd><p>a vector with length equal to length(traits) that indicates the
taxon of each individual.</p></dd>


<dt>discrete</dt>
<dd><p>whether trait data may take continuous or discrete values. Defaults to
<code>FALSE</code> (all traits continuous). A single logical value or a logical
vector with length equal to the number of columns in traits.</p></dd>


<dt>circular</dt>
<dd><p>whether trait da