ory (a vector of
monotonically-declining values in the interval [0,1]), or submatrix U from
a matrix population model.</p></dd>


<dt id="arg-mx">mx<a class="anchor" aria-label="anchor" href="#arg-mx"></a></dt>
<dd><p>Either an age-specific fecundity trajectory (a vector of
non-negative values), or submatrix F from a matrix population model.</p></dd>


<dt id="arg-type">type<a class="anchor" aria-label="anchor" href="#arg-type"></a></dt>
<dd><p>Calculation type, either `scaled` (default) or `unscaled`.</p><