Retrieve sequence names defined in a tabix file.

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Description

This function queries a tabix file, returning the names of the ‘sequences’ used as a key when creating the file.

Usage

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seqnamesTabix(file, ...)
## S4 method for signature 'character'
seqnamesTabix(file, ...)

Arguments

file

A character(1) file path or TabixFile instance pointing to a ‘tabix’ file.

...

Additional arguments, currently ignored.

Value

A character() vector of sequence names present in the file.

Author(s)

Martin Morgan <mtmorgan@fhcrc.org>.

Examples

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fl <- system.file("extdata", "example.gtf.gz", package="Rsamtools",
                  mustWork=TRUE)
seqnamesTabix(fl)

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