MATLAB exercise program (matrix generation of undirected network diagram)

There is a network in the dormitory, and the matrix needs to be converted into a network map to make it look a little bit. So I wrote such a function here.

The function is to change the adjacent matrix or associated matrix into a network diagram, but I can only convert it to an undirected graph here. I still need to study the arrow of the directed graph.The annotation function can be called.

 % Function name netplot % use method input help netplot % No Return Value
% Function can only process undirected graph % Author: tiandsp % last modification:  2012.12 . 26  Function  Netplot (A, flag) % call Method Input netplot (A, flag), no return value % A is an adjacent matrix or association matrix % flag = 1  % Flag = 2  When processing the association matrix % function, only undirected graphs can be processed.  If Flag =1  % Adjacent matrix indicates undirected graph nd_netplot (a); return;  End          If Flag = 2  % Join matrix: undirected graph [m n] = Size (a); % W = Zeros (M, M );  For I = 1  : N = Find (A (:, I )~ = 0  ); W ((  1 ), ( 2 ) = 1  ; W ((  2 ), ( 1 ) = 1  ;  End  Nd_netplot (w); return;  End                 Function  Nd_netplot (a) [N] = Size (a); W = Floor (SQRT (n); H = Floor (N/ W); x = []; Y = [];  For I = 1  : H % gives the range of random points to be generated, so that the display distribution is wider.  For J = 1  : W x = [X 10 * Rand ( 1 ) + (J- 1 )* 10 ]; Y = [Y 10 * Rand ( 1 ) + (I- 1 )* 10  ];  End          End  Ed = N-H * W;  For I = 1  : Ed x = [X 10 * Rand (1 ) + (I- 1 )* 10  ]; Y = [Y 10 * Rand ( 1 ) + H * 10  ];  End  Plot (x, y,  '  R *  '  ); Title (  ' Network Topology  '  );  For I = 1  : N  For J = I: N  If A (I, j )~ = 0  C = Num2str (a (I, j); % convert the weight in a to plain text (X (I) + X (j ))/ 2 , (Y (I) + Y (j ))/2 , C, '  Fontsize  ' , 10  ); % Display Edge Weight line ([X (I) x (j)], [Y (I) y (j)]); % line  End  Text (X (I), y (I), num2str (I ),  '  Fontsize  ' , 14 , '  Color  ' , '  R  '  ); % Display vertex serial number hold on;  End          End        End      End 

I will not say much about the call methods.

Below is a graph with 10 nodes (I still like to upload images for image creation ):