score:1

Accepted answer

I think you're almost there - it's just that your d3.nest is incorrect. Your grouping on the ID at the moment, but looking at your expected output that's not needed anywhere.

Change your grouping to use Name:

var databyID = d3.nest()
    .key(function(d) { return d.Name; })
    .entries(groupeddata);

This produced the following which I think is exactly what you want enter image description here


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