How to add " significant star " (*) to errorbar plot ?

Dear All,

I've created bar plot in the next way :

err = [ 0.2285767,0.2608904; 0.5362856,0.481496; 0.01711449,0.05935509; 0.08252063, 0.1091788];
y = [ 1.620632,1.804187; 3.129677, 2.815023; 0.9948397, 1.0550480; 1.120976, 1.233345 ];
figure
hBar= bar(y)
set(gca, 'XTickLabel', {'1' '2' '3' '4'});
hold on

ngroups = size(y, 1);
nbars = size(y, 2);

groupwidth = min(0.8, nbars/(nbars + 1.5));
for i = 1:nbars
x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);
errorbar(x, y(:,i), err(:,i), '.');
end
hold off

Can you help me please to add " significant star " (*) to errorbar plot above each comparing group ?

Thank you so much in advance!

Answer 1

[Peng Li]

This can be added using text function. You simply fake it using text label. For example, text(x, y, '$\asterisk$', 'Interpretation', 'latex');

x and y specify the (x,y) on the axis apprepriately so that you can label this asterisk on top of error bar.

Similarly you can add dagger or ddagger signs to specify different significant levels if you want.

[IM]

Thank you so much !