How to remove border line of a circle graph

Hello, i have a circle plot made with the following

 figure;
    G=graph(mdist,nombresn);
    plot(G,'layout','circle', 'NodeFontSize',4.5);

i´m trying to remove that black square border line, i´m sure it must be some silly solution but i have not find out how to do it yet. it loks like this:

thanks!

Answer 1

[Kelly Kearney]

set(gca, 'visible', 'off');

or

axis off;

[Juan David Mateus]

quite an easy task right? hahahaha, thank you very much!