Initialize a graph with graph, edges, name, or graph attributes Parameters ---------- incoming_graph_data : input graph (optional, default: None) Data to initialize graph. If None (default) an empty graph is created. The data can be an edge list, any
(self, incoming_graph_data=None, default_label=None, **attr)
| 275 | return Graph |
| 276 | |
| 277 | def __init__(self, incoming_graph_data=None, default_label=None, **attr): |
| 278 | """Initialize a graph with graph, edges, name, or graph attributes |
| 279 | |
| 280 | Parameters |
| 281 | ---------- |
| 282 | incoming_graph_data : input graph (optional, default: None) |
| 283 | Data to initialize graph. If None (default) an empty |
| 284 | graph is created. The data can be an edge list, any |
| 285 | NetworkX graph object or any GraphScope graph object. |
| 286 | If the corresponding optional Python packages are installed |
| 287 | the data can also be a 2D NumPy array, a SciPy sparse matrix |
| 288 | |
| 289 | default_label : default node label (optional, default: "_") |
| 290 | if incoming_graph_data is a GraphScope graph object, default label means |
| 291 | the nodes of the label can be accessed by id directly, other label nodes |
| 292 | need to use `(label, id)` to access. |
| 293 | |
| 294 | attr : keyword arguments, optional (default= no attributes) |
| 295 | Attributes to add to graph as key=value pairs. |
| 296 | |
| 297 | See Also |
| 298 | -------- |
| 299 | convert |
| 300 | |
| 301 | Examples |
| 302 | -------- |
| 303 | >>> G = nx.Graph() # or DiGraph |
| 304 | >>> G = nx.Graph(name='my graph') |
| 305 | >>> e = [(1, 2), (2, 3), (3, 4)] # list of edges |
| 306 | >>> G = nx.Graph(e) |
| 307 | |
| 308 | Arbitrary graph attribute pairs (key=value) may be assigned |
| 309 | |
| 310 | >>> G = nx.Graph(e, day="Friday") |
| 311 | >>> G.graph |
| 312 | {'day': 'Friday'} |
| 313 | |
| 314 | Created from a GraphScope graph object |
| 315 | |
| 316 | >>> g = graphscope.g(directed=False) # if transform to DiGraph, directed=True |
| 317 | >>> g.add_vertices("person.csv", label="person").add_vertices("comment.csv", label="comment").add_edges(...) |
| 318 | >>> G = nx.Graph(g, default_label="person") # or DiGraph |
| 319 | |
| 320 | """ |
| 321 | self.graph_attr_dict_factory = self.graph_attr_dict_factory |
| 322 | self.node_dict_factory = self.node_dict_factory |
| 323 | self.adjlist_outer_dict_factory = self.adjlist_outer_dict_factory |
| 324 | self.cache = self.graph_cache_factory(self) |
| 325 | |
| 326 | # init node and adj (must be after cache) |
| 327 | self.graph = self.graph_attr_dict_factory() |
| 328 | self._node = self.node_dict_factory(self) |
| 329 | self._adj = self.adjlist_outer_dict_factory(self) |
| 330 | |
| 331 | self._key = None |
| 332 | self._op = None |
| 333 | self._schema = GraphSchema() |
| 334 |
nothing calls this directly
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