Plot directed graph from 2D matrix

Hi i want to know that how to plot a directed tree from a given 2d matrix. for example i have data in this from:

and i want to plot directed tree like this:

In which 2 4 5 6 are nodes (keeping 2 as root) and there will be an edge if value is other than zero. e.g. (2,4)=1

Thanks in advance

Answer 1

[Walter Roberson]

See graph() to construct a graph object, and then plot() the graph object to draw it.

[lucksBi]

thanks for your answer. I have tried that but it creates graph based on indexes like in my example nodes of graph are 1 2 3 4 not 2 4 5 6.

[Walter Roberson]

adj = [0 1 0 0;
       0 0 0 1;
       1 1 1 0;
       0 0 1 1];
 G = digraph(adj, {'2', '4', '5', '6'}, 'OmitSelfLoops');
 plot(G)

[lucksBi]

Thanks