How to add values at blue dots in graphs?

Answer 1

[Sulaymon Eshkabilov]

You mean sum up the plotted blue 'square' marker data points?

If so and you have only this plot as a data source, then you can use:

[x, y] = ginput(9);  % hover your cursor carefully over the data points and click one after another for 9 times. 
Sum_y = sum(y);      % sum of y data points
Sum_x = sum(x);      % sum of x data points

[Laur Haxhiu]