Hi,

I am trying to understand whether the filter option is able to filter the gff that I have based on list of gene IDs, along with their exons, CDS, mRNA and UTR.. Is there an option like this in the package? If not, any idea how to do it? I am using simple grep for now, but it has its problems and I would like to know if there is smth quicker and clearer in R..

I think you could just import() the file, subset the returned object by whatever criteria, and export() it back to the file.