pan> is a unit
simplex because each piece has non-negative length and the sum of
the stick lengths is one by construction.</p>
<p>This full inverse mapping requires the breaks to be represented as the
fraction in <span class="math inline">\((0,1)\)</span> of the original stick that is broken off. These
break ratios are themselves derived from unconstrained values in
<span class="math inline">\((-\infty,\infty)\)</span> using the inverse logit transform as described
above for unidimensional variables with lo