is known to be valid such as when it is the direct result of stranger().</p></dd>


<dt>keep</dt>
<dd><p>character vector: names of columns to keep (filter)</p></dd>


<dt>drop</dt>
<dd><p>character vector: names of columns to drop (filter)</p></dd>


<dt>n.cluster</dt>
<dd><p>is the number of cluster groups to emphasis.
This parameter must only be specified with type ="cluster".</p></dd>


<dt>n.anom</dt>
<dd><p>is the number of top anomalies to be considered.
This parameter must only be specified with typ