GRanges imported
from a BED file.
blocks(x, ...)GenomicRanges, with a metadata
column of name “blocks” and of type RangesList. Such an
object is returned by import.bed and asBED.
GRangesList with an
element for each range in x. The original block ranges are
relative to the start of the containing range, so the returned ranges
are shifted to absolute coordinates. The seqname and strand are
inherited from the containing range.
import.bed for importing a track from BED, which
can store block information; asBED for coercing a
GenomicRanges into a BED-like structure that can be passed to
this function.