Annotation for specific id ( not all )

Question

[arwa.ahmad95]

Hello I have a vcf file that I extract the data from it and make a machine learning to this data to identify the most important variants now I want to annotate some variants ( that I identify from Machine Learning ) how can I annotate just this variants ?

Answer 1

[Pierre Lindenbaum]

extract those variants with bcftools , annotate them, put them back with 'bcftools concat'.

[arwa.ahmad95]

can u explain the steps .. what is the code for each step? I'm new in this field .. thanks