Summary statistics for a VCF/BCF file using DuckDB — vcf_summary_duckdb • RBCFTools

Get summary statistics including variant counts per chromosome.

Usage

vcf_summary_duckdb(file, extension_path = NULL, con = NULL)

Arguments

file: Path to VCF, VCF.GZ, or BCF file
extension_path: Path to the bcf_reader.duckdb_extension file.
con: Optional existing DuckDB connection (with extension loaded).

Value

A list with total_variants, n_samples, and variants_per_chrom

Examples

if (FALSE) { # \dontrun{
ext_path <- bcf_reader_build(tempdir())
vcf_summary_duckdb("variants.vcf.gz", ext_path)
} # }