## ----mychunk1, cache=TRUE, eval=TRUE, hide=TRUE------------------------------- ## text file library(AshkenazimSonChr21) head(SonVariantsChr21) ## vcf file library(VariantAnnotation) fl <- system.file("extdata", "SonVariantsChr21.vcf.gz", package="AshkenazimSonChr21") vcf <- readVcf(fl, genome="hg19") geno(vcf) info(vcf)