Showing actual values in colorbar 2D scatter plot

I make a 2D scatter plot through the code below. However my colorbar only shows values 0 to 1, in reality, my values for the colorbar are between 2 and 102.

How can I represent the numbers in the colorbar, as they are?

for y=1:2
xx=cell(length(AAG{y}),1);
I=cell(length(AAG{y}),1);
for o=1:length(AAG{y})
xx{o} =AAG{y}{o};
I{o}=AAI{y}(o);
end


for k1 = 1:length(AAG{y})
    scatter(ones(1,numel(xx{k1}))*y, xx{k1},ones(1,numel(xx{k1}))*I{k1})

end

end
xlim([0 3])

colorbar
hold off

Answer 1

[DGM]

caxis([2 102])