ion format<a class="anchor" aria-label="anchor" href="#solution-format"></a></h2>


<p>Broadly speaking, the argument to <code>solution</code> must be in the same format as
the planning unit data in the argument to <code>x</code>.
Further details on the correct format are listed separately
for each of the different planning unit data formats:</p>
<dl><dt><code>x</code> has <code>numeric</code> planning units</dt>
<dd><p>The argument to <code>solution</code> must be a
<code>numeric</code> vector with each el