dgl.DGLGraph.edge_attr_schemes¶

DGLGraph.edge_attr_schemes()[source]¶

Return the edge feature schemes.

Each feature scheme is a named tuple that stores the shape and data type of the node feature

Returns:	The schemes of edge feature columns.
Return type:	dict of str to schemes

Examples

Note

Here we use pytorch syntax for demo. The general idea applies to other frameworks with minor syntax change (e.g. replace torch.tensor with mxnet.ndarray).

>>> import torch as th
>>> G = dgl.DGLGraph()
>>> G.add_nodes(3)
>>> G.add_edges([0, 1], 2)  # 0->2, 1->2
>>> G.edata['y'] = th.zeros((2, 4))
>>> G.edge_attr_schemes()
{'y': Scheme(shape=(4,), dtype=torch.float32)}