plot legend that depicts different markes of nodes

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Rub Ron
Rub Ron 2023-3-23
评论： Rub Ron 2023-3-23
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

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采纳的回答

Dyuman Joshi
Dyuman Joshi 2023-3-23
Ran in:
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'})

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