/span>     species measure  units ref method min.TL    int slope         source</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 26 Bluegill      TL metric  75  Other     80 -5.374 3.316 Hillman (1982)</span>
<span class="r-in"><span><span class="fu">wsVal</span><span class="op">(</span><span class="st">"Bluegill"</span>,units<span class="op">=</span><span class="st">"metric"</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>     species measure