="fl">2</span><span class="op">)</span><span class="op">)</span>
<span class="fu"><a href="https://rdrr.io/r/graphics/plot.html" class="external-link">plot</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/stats/coef.html" class="external-link">coef</a></span><span class="op">(</span><span class="va">res1</span><span class="op">)</span>,<span class="fu"><a href="https://rdrr.io/r/stats/coef.html" class="external-link">coef</a></span><span class="op">(</span><span class="va">res2