예제 #1
0
    def degree(self):
        """A DegreeView for the Graph as G.degree or G.degree().

        The node degree is the number of edges adjacent to the node.
        The weighted node degree is the sum of the edge weights for
        edges incident to that node.

        This object provides an iterator for (node, degree) as well as
        lookup for the degree for a single node.

        Parameters
        ----------
        nbunch : single node, container, or all nodes (default= all nodes)
            The view will only report edges incident to these nodes.

        weight : string or None, optional (default=None)
           The name of an edge attribute that holds the numerical value used
           as a weight.  If None, then each edge has weight 1.
           The degree is the sum of the edge weights adjacent to the node.

        Returns
        -------
        If a single node is requested
        deg : int
            Degree of the node, if a single node is passed as argument.

        OR if multiple nodes are requested
        nd_iter : iterator
            The iterator returns two-tuples of (node, degree).

        Examples
        --------
        >>> G = nx.Graph()   # or DiGraph, MultiGraph, MultiDiGraph, etc
        >>> nx.add_path(G, [0, 1, 2, 3])
        >>> G.degree(0) # node 0 with degree 1
        1
        >>> list(G.degree([0, 1]))
        [(0, 1), (1, 2)]

        """
        self.__dict__['degree'] = degree = MultiDegreeView(self)
        return degree
예제 #2
0
    def degree(self):
        """Return an iterator for (node, degree) or degree for single node.

        degree(self, nbunch=None, weight=None)

        The node degree is the number of edges adjacent to the node.
        This function returns the degree for a single node or an iterator
        for a bunch of nodes or if nothing is passed as argument.

        Parameters
        ----------
        nbunch : iterable container, optional (default=all nodes)
            A container of nodes.  The container will be iterated
            through once.

        weight : string or None, optional (default=None)
           The edge attribute that holds the numerical value used
           as a weight.  If None, then each edge has weight 1.
           The degree is the sum of the edge weights adjacent to the node.

        Returns
        -------
        If a single node is requested
        deg : int
            Degree of the node, if a single node is passed as argument.

        OR if multiple nodes are requested
        nd_iter : iterator
            The iterator returns two-tuples of (node, degree).

        Examples
        --------
        >>> G = nx.Graph()   # or DiGraph, MultiGraph, MultiDiGraph, etc
        >>> nx.add_path(G, [0, 1, 2, 3])
        >>> G.degree(0) # node 0 with degree 1
        1
        >>> list(G.degree([0, 1]))
        [(0, 1), (1, 2)]

        """
        self.__dict__['degree'] = degree = MultiDegreeView(self)
        return degree