How to use gplot function given a matrix?

Question

Sharif 2014-9-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/155867-how-to-use-gplot-function-given-a-matrix

评论： lily yang 2017-4-10

Hello everybody I want to take the following matrix and have MATLAB draw a network out of the data within the matrix. I'm almost certain I have to use the gplot function to do this, but I have an error. Here is what I have:

ptCoordMx = [ 2.85714 37.14286; 2.85714 11.42857; 17.14286 11.42857; 25.71429 17.14286; 34.28571 22.85714; 25.71429 5.71429; 34.28571 11.42857; 34.28571 0.00000; 42.85714 17.14286; 42.85714 05.71429; 51.42857 11.42857; 65.71429 11.42857; 65.71429 37.14286; ]

Coordinates = 1:1:100 gplot(ptCoordMx,Coordinates) //// I keep getting an error for this line

any ideas?

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Answer 1

Mischa Kim 2014-9-23

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https://ww2.mathworks.cn/matlabcentral/answers/155867-how-to-use-gplot-function-given-a-matrix#answer_152619

在 MATLAB Online 中打开

Sharif, check out the example below

 Cor = [2 2; 1 -1; -3 -3; -1 1];
 A   = [0 1 0 1;...
        1 0 1 1;...
        0 1 0 0;...
        1 1 0 0];
 gplot(A,Cor)

Cor are the coordinates of in this case of four different points. A is the so-called adjacency matrix that defines which points are interconnected (1) and which are not (0). For example the first point [2 2] is connected with the second [1 -1] and the fourth [-1 1]. The third point [-3 -3] is connected to the second point [1 -1] .