alifestd_mark_clade_nodecount_ratio_sister_asexual

alifestd_mark_clade_nodecount_ratio_sister_asexual(phylogeny_df: DataFrame, mutate: bool = False, *, mark_as: str = 'clade_nodecount_ratio_sister') → DataFrame

Add column clade_nodecount_ratio_sister, containing the ratio of each clade size to that of its sister.

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

Root nodes will have ratio 1. Tree must be strictly bifurcating.

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.