 <span class="op">(</span><span class="va">i</span> <span class="op">==</span> <span class="va">j</span><span class="op">)</span>, lty <span class="op">=</span>  <span class="fl">2</span>, col <span class="op">=</span> <span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/legend.html" class="external-link">legend</a></span><span class="op">(</span><span class="st">'topleft'</span>, <span class="st">'True Value'</span>, 