Resizing plots in tiledlayout()

I need to plot two figures and I was using tiledlayout(2,1), but I want the top figure to take up about 1/3rd of the vertical space and the bottom plot to take up about 2/3rds of the vertical space. I've tried using uipanel but I can't seem to get it to work out right.

Answer 1

[Chunru]

tiledlayout(3,1);
nexttile;
plot(rand(10,1))
nexttile([2 1])  % span 2 rows and 1 colum in the tiledlayout
plot(rand(20,1))