n class="st">"chr1"</span>, <span class="st">"chr1"</span>, <span class="st">"chr1"</span>, <span class="st">"chr2"</span>),</a>
<a class="sourceLine" id="cb13-8" data-line-number="8">             <span class="dt">start =</span> <span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/c">c</a></span>(<span class="dv">220</span>, <span class="dv">210</span>, <span class="dv">300</span>, <span class="dv">400</span>),</a>
<a class="sourceLine" id="cb13-9" data-line-number="9">             