{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "background": "white",
  "padding": 5,
  "width": 200,
  "height": 200,
  "style": "cell",
  "data": [
    {
      "name": "source_0",
      "url": "data/cars.json",
      "format": {"type": "json"},
      "transform": [
        {"type": "formula", "expr": "datum.Origin[0]", "as": "OriginInitial"},
        {
          "type": "filter",
          "expr": "isValid(datum[\"Horsepower\"]) && isFinite(+datum[\"Horsepower\"]) && isValid(datum[\"Miles_per_Gallon\"]) && isFinite(+datum[\"Miles_per_Gallon\"])"
        }
      ]
    }
  ],
  "marks": [
    {
      "name": "marks",
      "type": "text",
      "style": ["text"],
      "from": {"data": "source_0"},
      "encode": {
        "update": {
          "fill": {"scale": "color", "field": "Origin"},
          "x": {
            "value": 0,
            "offset": {
              "scale": "x", "field": "Horsepower"
            }
          },
          "y": {"scale": "y", "field": "Miles_per_Gallon"},
          "text": {
            "signal": "isValid(datum[\"OriginInitial\"]) ? datum[\"OriginInitial\"] : \"\"+datum[\"OriginInitial\"]"
          },
          "align": {"value": "center"},
          "baseline": {"value": "middle"}
        }
      }
    }
  ],
  "scales": [
    {
      "name": "x",
      "type": "linear",
      "domain": [0, 300],
      "range": [0, {"signal": "width"}],
      "nice": true,
      "zero": true
    },
    {
      "name": "y",
      "type": "linear",
      "domain": {"data": "source_0", "field": "Miles_per_Gallon"},
      "range": [{"signal": "height"}, 0],
      "nice": true,
      "zero": true
    },
    {
      "name": "color",
      "type": "ordinal",
      "domain": {"data": "source_0", "field": "Origin", "sort": true},
      "range": "category"
    }
  ]
}