extract values from the INFO field

Use this function to extract the INFO field values for a single INFO field in a give region based query.

extract_info(vcf, index, reg, tag)

Arguments

vcf	the VCF/BCF file path
index	the CSI/TBI index file path
reg	a region query of the form: chr:start-end
tag	the field in the INFO field to extract. Only accepts one string value at this time. Only can extract numeric fields at the moment.

Value

a dataframe with the chrom, pos, and value of the given INFO field

Examples

# NOT RUN {
extract_info(vcf, index, "1:10001-100500", "AC")
# }