gplot(A,XYCoords) plots a
graph of the nodes and edges defined in the adjacency matrix A at the
coordinates specified in XYCoords. The adjacency matrix
A is an n-by-n matrix, where
n is the number of nodes. XYCoords is an
n-by-2 matrix specifying
xy-coordinates for each node.

gplot(A,XYCoords,LineSpec)
additionally uses LineSpec to specify the line type, marker symbol, and
color to use in the plot. For example, gplot(A,XY,'r-*') uses red lines
for edges and red asterisks for nodes.

[x,y] = gplot(A,XYCoords)
returns the NaN-delimited vectors x and
y without generating a plot. Use x and
y to generate a plot at a later time using
plot(x,y).

Adjacency matrix, specified as a matrix. A describes the
connections between the nodes in the graph by the location of nonzero values. If node
i and node j are connected, then
A(i,j) or A(j,i) is nonzero; otherwise,
A(i,j) and A(j,i) are zero.

Example: A = ones(5) is the adjacency matrix of a graph with five
nodes where each node is connected to all the others.

Example: A = [0 1 1 1; 1 0 0 0; 1 0 0 0; 1 0 0 0] is the adjacency
matrix of a graph with four nodes where one node connects to the other
three.

Data Types: single | double

XYCoords — xy-coordinates of nodes N-by-2 matrix

xy-coordinates of nodes, specified as an
N-by-2 matrix. Each row in
XYCoords defines the coordinates for one node in the graph, so
XYCoords(i,:) = [x(i) y(i)] gives the coordinates for node
i.

Example: XYCoords = [1 2; 3 4] plots one node at (1,2) and a
second node at (3,4).

LineSpec — Line style, marker, and color string | character vector

Line style, marker, and color, specified as a string or character vector containing symbols.
The symbols can appear in any order. You do not need to specify all three
characteristics (line style, marker, and color). For example, if you omit the line style
and specify the marker, then the plot shows only the marker and no line.

Example: "--or" is a red dashed line with circle markers

Node coordinates, returned as vectors. x and y
contain the same information as XYCoords, but in a different format
that is suitable for plotting with the command plot(x,y). The line
segments defined in x and y are separated with
NaN values.

Tips

Use graph and digraph objects to work with graph and network algorithms. You can visualize
the networks with plot.

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