dgl.NodeFlow.layer_parent_nid¶

NodeFlow.layer_parent_nid(layer_id)[source]¶

Get the node Ids of the parent graph in the specified layer

layer_parent_nid(-1) returns seed vertices for this NodeFlow.

Parameters:	layer_id (int) – The layer to get the node Ids.
Returns:	The parent node id array.
Return type:	Tensor