babette_example_7 Branch master develop A babette example. Example #7: HKY site model with a non-zero proportion of invariants posterior <- bbt_run( "my_alignment.fas", site_model = create_hky_site_model( gamma_site_model = create_gamma_site_model(prop_invariant = 0.5) ) ) Thanks to Yacine Ben Chehida for this use case Result