Contents
How to create an undirected graph with no nodes?
G = graph creates an empty undirected graph object, G, which has no nodes or edges. G = graph (A) creates a weighted graph using a square, symmetric adjacency matrix, A.
How to create a weighted graph with undirected edges?
G = graph(A) creates a weighted graph using a square, symmetric adjacency matrix, A. The location of each nonzero entry in A specifies an edge for the graph, and the weight of the edge is equal to the value of the entry. For example, if A(2,1) = 10, then G contains an edge between node 2 and node 1 with a weight of 10.
How to change the size of the nodes in a graph?
Change the color and marker of the nodes. Increase the size of the nodes. Change the line style of the edges. Change the x and y coordinates of the nodes. Graph plot, returned as an object. For more information, see GraphPlot.
How to plot a graph using custom coordinates?
Plot the graph using custom coordinates for the nodes. The x-coordinates are specified using XData, the y-coordinates are specified using YData, and the z-coordinates are specified using ZData. Use EdgeLabel to label the edges using the edge weights.
What is the weight of an undirected edge in MATLAB?
The edge between node 1 and node 2 has a weight of 1, and the edge between node 1 and node 3 has a weight of 5. Node names, specified as a cell array of character vectors or string array. nodenames must have length equal to numnodes (G) so that it contains a nonempty, unique name for each node in the graph.
What’s the difference between a directed graph and an undirected graph?
In MATLAB®, the graph and digraph functions construct objects that represent undirected and directed graphs. Undirected graphs have edges that do not have a direction. The edges indicate a two-way relationship, in that each edge can be traversed in both directions. Directed graphs have edges with direction.