Plotting grouped 3D bars from 3D matrix

Dear Matlab Community,

I have a 3D matrix (rows=5, cols=4, planes=5) where rows represent different simulation conditions (1 to 5 values on the x-axis), columns represent different simulation approaches (4 colors in the attached plots) and planes represent different parameterization (δ in the attached plot). I created the attached plot using tiled layout where I loop over the 3rd index of the matrix and plot the corresponding 2D matrix using grouped bar3 plot, but I want to merge them all in one 3D bar plot where I want each color to represent a column and combine the variation in δ into the y-axis.

Thanks in advance for your help!

Answer 1

[Matt J]

Perhaps as follows:

 z=rand(5,4,5);%Fake data

 numDelta=size(z,3);
 
 clear xtk
 for i=1:numDelta

      h=bar3(z(:,:,i),'grouped'); hold on
      
      for j=1:numel(h)
       h(j).XData=h(j).XData+(i-1);
      end

      xtk(i)=mean([h.XData],'all','omitnan');

 end
 hold off; axis padded, axis equal
 zlabel z, ylabel y, xlabel('\delta')
 xticks(xtk); xticklabels(string((1:numDelta)*0.05));
 view(25,30)

[Omar Kamel]

Thanks a lot, Matt! This is exactly what I am looking for!