How to highlight isolated nodes in a graph?

Hello, how can I highlight isolated nodes in a graph?

I have tried the following but didn't work:

d=distances(G,(1:N)); % N is the no. of nodes 
idx= ismember(d,inf(1,length(d)), 'rows');
H=plot(G,'XData',x,'YData',y);
highlight(H,idx)

Thanks!

[Asaf McRock]

Does distances measure the distance between the node and itself?

Answer 1

[Steven Lord]

You want to highlight those nodes that are not connected to any other?

G = graph(sprand(10, 10, 0.05), 'upper');
h = plot(G);
highlight(h, degree(G) == 0, 'NodeColor', 'r')

[Asaf McRock]

Thank you very much, Mr. Steven Lord. This is amazing, I don't know why I was complicating it.