Determine if an MRCA prior's alignment IDs are present in the FASTA files
is_mrca_align_ids_in_fastas(mrca_prior, fasta_filenames)TRUE if the MRCA prior's alignment IDs is present in the FASTA files. Returns FALSE otherwise
a Most Recent Common Ancestor prior,
as returned by create_mrca_prior
One or more FASTA filenames.
Use get_fasta_filename to obtain a testing FASTA filename.
Richèl J.C. Bilderbeek