zip: File compression for tabix (bgzip) and fasta (razip) files....

In Rsamtools: Binary alignment (BAM), FASTA, variant call (BCF), and tabix file import

Description

bgzip compresses tabix (e.g. SAM or VCF) or FASTA files to a format that allows indexing for later fast random-access.

Usage

bgzip(file, dest=sprintf("%s.bgz", sub("\\.gz$", "", file)),
      overwrite = FALSE)

## Defunct!
razip(file, dest=sprintf("%s.rz", sub("\\.gz$", "", file)),
      overwrite = FALSE)

Arguments

file	A character(1) path to an existing uncompressed or gz-compressed file. This file will be compressed.
dest	A character(1) path to a file. This will be the compressed file. If dest exists, then it is only over-written when overwrite=TRUE.
overwrite	A logical(1) indicating whether dest should be over-written, if it already exists.

Value

The full path to dest.

Author(s)

Martin Morgan <[e-mail]>

References

http://samtools.sourceforge.net/

See Also

TabixFile, FaFile.

Examples

from <- system.file("extdata", "ex1.sam", package="Rsamtools",
                    mustWork=TRUE)
to <- tempfile()
zipped <- bgzip(from, to)

Rsamtools documentation built on Nov. 8, 2020, 8:11 p.m.