I have a VCF file, and I have converted it into data frame. Now I have to do gene annotation, but the vcf file has #chrom pos ref alt columns. like there is no genomic coordinates (i.e. start and end). Now I have to add gene annotation based on the #chrom and pos.
I have been trying using different R packages, I'm getting lot of errors.
Please suggest some ideas. Or are there any packages, so I can do the analysis?, Preferably in R programming language.