This is not possible to do with ggplot2 but maybe you could consider adding facets by each category instead.
If you need more specific help, please provide a proper REPRoducible EXample (reprex) illustrating your issue.
This is not possible to do with ggplot2 but maybe you could consider adding facets by each category instead.
If you need more specific help, please provide a proper REPRoducible EXample (reprex) illustrating your issue.