plot legend that depicts different markes of nodes

I want to have a legend that label the markers present in my graph plot.

G = graph([1 1], [2 3]);
plot(G,'marker',[{'o'},{'x'},{'+'}])

Legend should show:

o one

x two

x three

Answer 1

[Dyuman Joshi]

The problem here is that legend will only provide labels for what graphics recognizes as individual objects. So in a line plot, each line is recognized as an object - but graph is recognized as one object only

That's why if you directly use legend after creating the graph, you will get the graph as the legend identifier.

There is a work around to achieve what you want to do -

str=[{'o'},{'x'},{'+'}];
clr='b';
figure
hold on
for k=1:numel(str)
    plot(NaN,NaN,[clr str{k}])
end

G = graph([1 1], [2 3]);
plot(G,'NodeColor',clr,'EdgeColor',clr,'Marker',str,'MarkerSize',6)
legend({'one', 'two', 'three'})

[Rub Ron]

I would just add:

plot(NaN,NaN,[clr str{k}],'MarkerFaceColor',clr)

to fill the marker.