I'm using a stacked column chart to show numbers of participants in clinical trials each month. Each stack shows two categories of trial, commercial and non-commercial. I can turn labels 'on' or 'off', but is there any way to adjust their position or size? As you can see, the commercial label for May is just about illegible. How can I improve this? stacked chart by month
The label font size can be set:
Add a reference line to exceed the y limit of the graph and the label should appear above the bar. (Setting a max value for y axis is also possible)