alifestd_mark_csr_offsets_asexual

alifestd_mark_csr_offsets_asexual(phylogeny_df: DataFrame, mutate: bool = False, *, mark_as: str = 'csr_offsets') → DataFrame

Add column csr_offsets, the CSR offset where each node’s children begin in the corresponding csr_children array.

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.