a></span><span class="op">(</span><span class="st">'1NTN 2EN 5BB'</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="empiric_tox_rate.html">empiric_tox_rate</a></span><span class="op">(</span><span class="va">x</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] 0.3333333 0.0000000       NaN       NaN 1.0000000</span>
</code></pre></div>
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