Selection of ranges and columns
A BigBedSelection
represents a query against a
BigBed file, see import.bb
. It is simply
a RangedSelection with colnames
parameter.colnames
should be a character vector of column names.
Default columns are "name", "score", "thick", "itemRgb"
and "blocks"
, if non-empty, as that is the only column supported
by BigBed.
BigBedSelection(ranges = GRanges(), colnames =
"score")
: Constructs a BigBedSelection
with the given
ranges
and colnames
.
a character
identifying a genome (see
GenomicSelection
), or a
BigBedFile
, in which case the ranges are
derived from the bounds of its sequences.
as(from, "BigBedSelection")
: Coerces from
to a
BigBedSelection
object. Typically, from
is a
GRanges
or
a IntegerRangesList
, the ranges of
which become the ranges in the
new BigBedSelection
.
Michael Lawrence
rl <- IRangesList(chr1 = IRanges::IRanges(c(1, 5), c(3, 6))) BigBedSelection(rl) as(rl, "BigBedSelection") # same as above # do not select any column BigBedSelection(rl, character())
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