Data lines poiting data labels

[Greg]

Hi @sgrady.

First off, apologies for the delay in responding … I had previous commitments and wasn’t able to explore your issue until today.

The addition of data value leader lines is manual in Deneb\Vega-Lite; add additional “rule” marks in your “layer” block as desired.

For an example of the use of leader lines, see my recent post on Venn Diagrams.

Deneb Example - Venn Diagram and Bar Chart

Deneb/Vega-Lite can be used to create both Venn Diagrams and Bar Charts that not only visually represent the unique and common elements between sets (most often 2 or 3), but also the relative set sizes. While Venn Diagrams often use set circles of the same size to clearly and easily show the interactions between sets, they can misrepresent the relative sizes of the sets and interactions. When the analysis involves more than 3 sets, an UpSet Plot may be more beneficial; an example of an UpSet Pl…

Hope it helps.

Greg