Whether a node is deleted.
(self, node_id: int)
| 106 | return self.nodes[node_id].left == -1 |
| 107 | |
| 108 | def is_deleted(self, node_id: int) -> bool: |
| 109 | """Whether a node is deleted.""" |
| 110 | return self.split_index(node_id) == np.iinfo(np.uint32).max |
| 111 | |
| 112 | def __str__(self) -> str: |
| 113 | stack = [0] |