alifestd_mark_num_descendants_asexual

alifestd_mark_num_descendants_asexual(phylogeny_df: DataFrame, mutate: bool = False, *, mark_as: str = 'num_descendants') → DataFrame

Add column num_descendants, excluding self.

The output column name can be changed via the mark_as parameter.

A topological sort will be applied if phylogeny_df is not topologically sorted. Dataframe reindexing (e.g., df.index) may be applied.

Input dataframe is not mutated by this operation unless mutate set True. If mutate set True, operation does not occur in place; still use return value to get transformed phylogeny dataframe.