gtrack.export_bigwig: Export a track to BigWig format

In misha: Toolkit for Analysis of Genomic Data

Export a track to BigWig format

Description

Exports a track or track expression to BigWig format by first creating a temporary bedGraph file and then converting it using bedGraphToBigWig (or wigToBigWig as a fallback).

Usage

gtrack.export_bigwig(track, file, intervals = NULL, iterator = NULL)

Arguments

track	track name or track expression (character string)
file	output file path (typically ending in .bw or .bigwig).
intervals	genomic intervals to export. If NULL (default), the entire genome (.misha$ALLGENOME) is used.
iterator	iterator bin size. If NULL (default), the iterator is determined automatically from the track expression.

Details

This function requires the UCSC bedGraphToBigWig utility to be installed and available on the system PATH, or bundled with the misha package. If not found, the function will raise an error with installation instructions.

Value

NULL (invisible). Called for its side effect of writing a file.

See Also

gextract, gtrack.export_bedgraph, gtrack.info

Examples

## Not run: 
gdb.init_examples()

# Export to BigWig (requires bedGraphToBigWig)
gtrack.export_bigwig("dense_track", "/tmp/dense.bw")

# With specific region
gtrack.export_bigwig("dense_track", "/tmp/dense_chr1.bw",
    intervals = gintervals(1, 0, 1e6)
)

## End(Not run)

misha documentation built on Aug. 24, 2026, 5:14 p.m.