Histogram (from Binned Data)

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Vega-Lite JSON Specification

{
  "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
  "data": {
    "values": [
      {"bin_start": 8, "bin_end": 10, "count": 7},
      {"bin_start": 10, "bin_end": 12, "count": 29},
      {"bin_start": 12, "bin_end": 14, "count": 71},
      {"bin_start": 14, "bin_end": 16, "count": 127},
      {"bin_start": 16, "bin_end": 18, "count": 94},
      {"bin_start": 18, "bin_end": 20, "count": 54},
      {"bin_start": 20, "bin_end": 22, "count": 17},
      {"bin_start": 22, "bin_end": 24, "count": 5}
    ]
  },
  "mark": "bar",
  "encoding": {
    "x": {
      "field": "bin_start",
      "bin": {
        "binned": true,
        "step": 2
      },
      "type": "quantitative"
    },
    "x2": {"field": "bin_end"},
    "y": {
      "field": "count",
      "type": "quantitative"
    }
  }
}