The code is created largely based on the alluvial diagram (https://nl.mathworks.com/matlabcentral/fileexchange/66746-alluvial-flow-diagram). It improves the alluvial diagram in two respects:
1. It can plot a Sankey diagram with multiple blocks
2. For each block, the left and right ends do not have to be balanced.
Text labels have to be added separately.
Ranran Wang (2020). Sankey Diagram (https://www.mathworks.com/matlabcentral/fileexchange/75813-sankey-diagram), MATLAB Central File Exchange. Retrieved .