How to create two-dimensional boxplots

Hey all,

I would like to create a two-dimensional boxplot. So far I only managed to create 1D Boxplots with fixed x-value using boxchart. The result should be something like the below image:

On stackoverflow I found a solution for R and Python (matlplotlib), unfortunately I didn't find anything for Matlab.

R-solution

https://stackoverflow.com/questions/30072525/drawing-2d-boxplots-with-r-ggplot

Python (matplotlib) solution

https://stackoverflow.com/questions/53849636/draw-a-double-box-plot-chart-2-axes-box-plot-box-plot-correlation-diagram-in

I would be happy if someone has a clever idea for the solution. Thanks in advance and best regards,

Tom

Answer 1

[Kevin Holly]

x = rand(1,30);
y = rand(1,30);
tiledlayout(1,2)
nexttile
scatter(x,y,'filled','r');
nexttile
boxchart(median(y)*ones(size(x)),x)
hold on
boxchart(median(x)*ones(size(y)),y,"Orientation","horizontal")

[Tom Rüther]

Dear Kevin,

thank you for this very nice and easy solution!

Best regards,

Tom

Answer 2

[Constantino Carlos Reyes-Aldasoro]

Have a look at this code:

https://uk.mathworks.com/matlabcentral/fileexchange/68006-boxplot3d-create-three-dimensional-boxplots4

It describes how to do 3D boxplots, if you only have one grouping, it would go down to 2D

[Tom Rüther]

Dear Constantino,

Thank you for your quick reply, unfortunately this does not work for the desired plot as I would like to display the information in x-direction as well.