U = setdiff(10 : 10: 100, 80 : 10 : 90);
V = 1e2 : 50 : 450;
X = sort(randi(400, size(U)));
Y = sort(randi(98, size(U))) .* rand(size(U));
scatter3(V, X, Y,[], U, 'filled')
colorbar
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