_clade</span>, <span class='st'>"D"</span>, <span class='kw'>graphs</span> <span class='kw'>=</span> <span class='fl'>2</span>)
}
<span class='co'># \dontshow{</span>
<span class='fu'><a href='https://rdrr.io/r/base/Random.html'>set.seed</a></span>(<span class='fl'>6987</span>)
<span class='no'>mphy</span> <span class='kw'>=</span> <span class='fu'>rmtree</span>(<span class='fl'>150</span>, <span class='kw'>N</span> <span class='kw'>=</span> <span class='fl'>30</span>)
<span class='no'>x</span> <span class=