I'd like to create a heatmap in which the individual cells are split diagonally so that:
1 - each cell can contain 2 colours
2 - different colours can be assigned based on category
3 - different shades can be applied based on a numerical scale
I'm not even sure what terms are used to search for this type of heatmap so am struggling to find a tool that can do it.
EDIT: I contacted the authors who shared the bespoke script for the heatmap - it is 700 lines of AWK code :( - I think I'll be giving that a skip in favour of EagleEye's suggestion below :)
UPDATE: For completion, corrplot works great when X and Y axis labels are identical (i.e. when plotting a correlation). But this does not work otherwise. Jean Karims suggestion of instead finding another way of plotting 3D data would be better e.g. plot3D