testRollupForDuplicates = d3.rollup(
combined_data,
(v) => {
let array_length = v.length;
let daly_set = new Set(v.map((d) => d.daly));
let funding_set = new Set(v.map((d) => d.funding_2022));
let daly_duplicates = array_length !== daly_set.size;
let funding_duplicates = array_length !== funding_set.size;
return { daly_duplicates, funding_duplicates };
},
(d) => d.gender
)