me is mis-spelled (or mis-capitalized), multiple standard weight equations exist for the species (such that <code>group</code>, <code>ref</code>, or <code>method</code> should be used), or if a standard weight equation does not exist for the species in <code><a href="WSlit.html">WSlit</a></code>, then an error will be issued.</p>
    </div>
    <div class="section level2">
    <h2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
    <p>This function extracts all known info