I have data about a certain workforce, with different worker types W1, W2, W3, W4, etc. I need a method to visualise the relationship between each worker type. In particular, I'm interested in visualising the proportion of each worker type (e.g., W1, W2, W3, etc.) that works with each other worker type.
Essentially, assuming there are 10 worker types, I'm looking at a 10x10 matrix. I could visualise it like these:
...but I'm open to any other ideas. Those two diagrams require programs that I find difficult to use. I'm looking for something more appealing than a matrix with coloured cells.