         "circos.clear"         "circos.initialize"   </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [4] "circos.link"          "circos.par"           "circos.rect"         </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [7] "circos.text"          "circos.track"         "colorRamp2"          </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [10] "highlight.chromosome" "rand_color"          </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<s