Head/tail breaks / Fil | Observable

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Feb 16, 2023

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Head/tail breaks

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function headTail0(values) {

values = [...values];

const bins = [d3.min(values)];

let m = d3.mean(values);

while (values.length > 1)

bins.push((m = d3.mean((values = values.filter((d) => d > m)))));

return bins;

}

headTail0([

1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1,

1, 12, 3, 4, 5, 6, 7, 8, 9, 10, 11, 5, 6, 7, 6, 5, 6, 7, 8, 8, 9, 8, 7, 6, 7,

8, 9, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1

])

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