Occastionally ncbi taxonomic lineages will have a (grand) parent and child with the same rank other than no_rank. For example I have seen it in Fungi and Gastropoda ncbi lineages. When building a taxit taxtable the current approach is to randomly pick a tax_id to assign to a rank column to handle this situation. A better approach would be to set the lower rank to no_rank before building the lineage.
Occastionally ncbi taxonomic lineages will have a (grand) parent and child with the same rank other than no_rank. For example I have seen it in Fungi and Gastropoda ncbi lineages. When building a
taxit taxtable
the current approach is to randomly pick a tax_id to assign to a rank column to handle this situation. A better approach would be to set the lower rank to no_rank before building the lineage.