Read a BigWig file
read_bigwig(file, genome_info = NULL, overlap_ranges = NULL)A path to a file or URL.
An optional character string or a Ranges object that contains information about the genome build. For example the identifier "hg19" will add build information to the returned GRanges.
An optional Ranges object. Only the intervals in the file that overlap the Ranges will be loaded.
a GRanges object
rtracklayer::BigWigFile()
if (.Platform$OS.type != "windows") {
test_path <- system.file("tests", package = "rtracklayer")
bw_file <- file.path(test_path, "test.bw")
gr <- read_bigwig(bw_file)
gr
}
#> GRanges object with 9 ranges and 1 metadata column:
#> seqnames ranges strand | score
#> <Rle> <IRanges> <Rle> | <numeric>
#> [1] chr2 1-300 * | -1.00
#> [2] chr2 301-600 * | -0.75
#> [3] chr2 601-900 * | -0.50
#> [4] chr2 901-1200 * | -0.25
#> [5] chr2 1201-1500 * | 0.00
#> [6] chr19 1501-1800 * | 0.25
#> [7] chr19 1801-2100 * | 0.50
#> [8] chr19 2101-2400 * | 0.75
#> [9] chr19 2401-2700 * | 1.00
#> -------
#> seqinfo: 2 sequences from an unspecified genome