How do I plot error bar at only one location ?

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HABILA
HABILA 2019-12-11
评论： HABILA 2019-12-11
Suppose, I have this two data. Here the errorbar is plotted for every v. But I need to put error bat at only one particulat index v(4).
u = 1:10:100;
v = [20 30 45 40 60 65 80 75 95 90];
err = 8*ones(size(v));
errorbar(u,v,err)

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Stijn Haenen
Stijn Haenen 2019-12-11
just plot first without errorbar and than with errorbar for only the 4th value:
plot(u,v,'b')
hold on
errorbar(u(4),v(4),err(4),'b')

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