 5]      *
##   [4]     chr1    [4, 6]      *
## 
## $gr2 
## GRanges object with 4 ranges and 0 metadata columns:
##       seqnames ranges strand
##   [1]     chr2 [1, 3]      *
##   [2]     chr2 [2, 4]      *
##   [3]     chr2 [3, 5]      *
##   [4]     chr2 [4, 6]      *
## 
## -------
## seqinfo: 2 sequences from an unspecified genome; no seqlengths</code></pre>
<p>A number of standard <code>GRanges</code> functions work, but returns (for example) <code>IntegerList</code>s</p>
<pre class="r"><code>start