{
  "$schema": "https://vega.github.io/schema/vega-lite/v2.json",
  "config": {"background":"#ffffff"},   
  "data": { "url": "data/cars.csv" },
  "layer": [
    {
      "mark": "rule",
      "encoding": {
        "x": {
          "field": "body-style", 
          "type": "nominal"},
        "y": {
          "aggregate": "min",
          "field": "curb-weight",
          "type": "quantitative",
          "axis": {"title": "Curb Weight"}
        },
        "y2": {
          "aggregate": "max",
          "field": "curb-weight",
          "type": "quantitative"
        }
      }
    },
    {
      "mark": "tick",
      "encoding": {
        "x": {
          "field": "body-style", 
          "type": "nominal"
        },
        "y": {
          "aggregate": "min",
          "field": "curb-weight",
          "type": "quantitative"
        },
        "size": {"value": 5}
      }
    },
    {
      "mark": "tick",
      "encoding": {
        "x": {"field": "body-style", "type": "nominal"},
        "y": {
          "aggregate": "max",
          "field": "curb-weight",
          "type": "quantitative"
        },
        "size": {"value": 5}
      }
    },
    {
      "mark": "bar",
      "encoding": {
        "x": {"field": "body-style", "type": "nominal"},
        "y": {
          "aggregate": "q1",
          "field": "curb-weight",
          "type": "quantitative"
        },
        "y2": {
          "aggregate": "q3",
          "field": "curb-weight",
          "type": "quantitative"
        },
        "size": {"value": 5}
      }
    },
    {
      "mark": "tick",
      "encoding": {
        "x": {"field": "body-style", "type": "nominal"},
        "y": {
          "aggregate": "median",
          "field": "curb-weight",
          "type": "quantitative"
        },
        "size": {"value": 5},
        "color": { "value" : "white" }
      }
    }
  ]
}