alifestd_unfurl_traversal_postorder_contiguous_polars

alifestd_unfurl_traversal_postorder_contiguous_polars(phylogeny_df: DataFrame, child_order: Literal['asc', 'desc'] | None = None) → ndarray

List node indices in DFS postorder traversal order, with subtree contiguity.

Parameters

phylogeny_dfpolars.DataFrame or polars.LazyFrame

The phylogeny as a dataframe in alife standard format.

Must represent an asexual phylogeny with contiguous ids and topologically sorted rows.

child_order{“asc”, “desc”, None}, default None

Order in which siblings are visited when descending the tree. "asc" visits smallest-id child first, "desc" visits largest-id child first, and None uses an arbitrary (implementation-defined) order.

Returns

np.ndarray

Index array giving DFS postorder traversal order.

See Also

alifestd_unfurl_traversal_postorder_asexual :

Pandas-based implementation.