How to label each data point in a MatLab plot, like the following figure?

MatLab code:

x = [1:10];
y = x + rand(1,10);

figure('color','w'); plot(x,y,'o');
a = [1:10]'; b = num2str(a); c = cellstr(b);
dx = 0.1; dy = 0.1;
text(x+dx, y+dy, c);

It also works on 3D plot:

Adopted from http://www.mathworks.com/matlabcentral/answers/97277-how-can-i-apply-data-labels-to-each-point-in-a-scatter-plot-in-matlab-7-0-4-r14sp2

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