I would be so grateful for some help!
I would like my graph to highlight a node and the other nodes it’s connected to on mouseover. I’ve based my mouseover function on this example: Network Graph with d3.force grouping / Raven Gao / Observable
I can’t get it to work; instead it unhighlights all nodes: I think it’s something to do with the fact that my nodes are grouped?
If someone could explain my error to me I would be so grateful!