Detect VEP annotation tag in VCF file

Checks for the presence of CSQ, BCSQ, or ANN annotation tags in the VCF header and returns the first one found.

Usage

vep_detect_tag(filename)

Arguments

filename

Path to VCF/BCF file

Value

Character string with tag name ("CSQ", "BCSQ", or "ANN"), or NA if no annotation found

Examples

if (FALSE) { # \dontrun{
vep_detect_tag("annotated.vcf.gz")  # Returns "CSQ"
} # }