s='cn'>FALSE</span><span class='op'>)</span> <span class='op'>{</span></span>
<span class='r-in'><span class='va'>v1</span> <span class='op'>=</span> <span class='fu'>vis</span><span class='op'>(</span><span class='va'>lm1</span>, seed <span class='op'>=</span> <span class='fl'>1</span><span class='op'>)</span></span>
<span class='r-in'><span class='fu'><a href='https://rdrr.io/r/graphics/plot.default.html'>plot</a></span><span class='op'>(</span><span class='va'>v1</span>, highlight <span class='op'>=</spa