V = d3.group(input.split(/\s+/g).map(Number), (d, i) => i % 2)
D = (A, B) => d3.sum(d3.zip(d3.sort(A), d3.sort(B)), ([a, b]) => Math.abs(a - b))
sum_of_distances = D(V.get(0), V.get(1)) // result 1
counts1 = d3.rollup(V.get(1), (v) => v.length, (d) => d)
similarity = d3.sum(V.get(0), (i) => i * counts1.get(i)) // result 2
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
