{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "description": "Bar graph showing the best films for the year they were produced, where best is defined by at least 2.5 points above average for that year. The red point shows the average rating for a film in that year, and the bar is the rating that the film recieved.",
  "background": "white",
  "padding": 5,
  "width": 200,
  "style": "cell",
  "data": [
    {
      "name": "source_0",
      "url": "https://raw.githubusercontent.com/vega/vega-datasets/master/data/movies.json",
      "format": {"type": "json", "parse": {"Release Date": "date"}},
      "transform": [
        {"type": "filter", "expr": "datum['IMDB Rating'] != null"},
        {
          "field": "Release Date",
          "type": "timeunit",
          "units": ["year"],
          "as": ["year", "year_end"]
        },
        {
          "type": "joinaggregate",
          "as": ["AverageYearRating"],
          "ops": ["mean"],
          "fields": ["IMDB Rating"],
          "groupby": ["year"]
        },
        {
          "type": "filter",
          "expr": "(datum['IMDB Rating'] - datum.AverageYearRating) > 2.5"
        }
      ]
    },
    {
      "name": "data_0",
      "source": "source_0",
      "transform": [
        {
          "type": "stack",
          "groupby": ["Title"],
          "field": "IMDB Rating",
          "sort": {"field": [], "order": []},
          "as": ["IMDB Rating_start", "IMDB Rating_end"],
          "offset": "zero"
        },
        {
          "type": "filter",
          "expr": "isValid(datum[\"IMDB Rating\"]) && isFinite(+datum[\"IMDB Rating\"])"
        }
      ]
    },
    {
      "name": "data_1",
      "source": "source_0",
      "transform": [
        {
          "type": "filter",
          "expr": "isValid(datum[\"AverageYearRating\"]) && isFinite(+datum[\"AverageYearRating\"])"
        }
      ]
    }
  ],
  "signals": [
    {"name": "y_step", "value": 20},
    {
      "name": "height",
      "update": "bandspace(domain('y').length, 0.1, 0.05) * y_step"
    }
  ],
  "marks": [
    {
      "name": "layer_0_marks",
      "type": "rect",
      "clip": true,
      "style": ["bar"],
      "from": {"data": "data_0"},
      "encode": {
        "update": {
          "fill": {"value": "#4c78a8"},
          "ariaRoleDescription": {"value": "bar"},
          "description": {
            "signal": "\"IMDB Rating: \" + (format(datum[\"IMDB Rating\"], \"\")) + \"; Title: \" + (isValid(datum[\"Title\"]) ? datum[\"Title\"] : \"\"+datum[\"Title\"])"
          },
          "x": {"scale": "x", "field": "IMDB Rating_end"},
          "x2": {"scale": "x", "field": "IMDB Rating_start"},
          "y": {"scale": "y", "field": "Title"},
          "height": {"scale": "y", "band": 1}
        }
      }
    },
    {
      "name": "layer_1_marks",
      "type": "rect",
      "style": ["tick"],
      "from": {"data": "data_1"},
      "encode": {
        "update": {
          "opacity": {"value": 0.7},
          "fill": {"value": "red"},
          "ariaRoleDescription": {"value": "tick"},
          "description": {
            "signal": "\"AverageYearRating: \" + (format(datum[\"AverageYearRating\"], \"\")) + \"; Title: \" + (isValid(datum[\"Title\"]) ? datum[\"Title\"] : \"\"+datum[\"Title\"])"
          },
          "xc": {"scale": "x", "field": "AverageYearRating"},
          "yc": {"scale": "y", "field": "Title", "band": 0.5},
          "height": {"value": 15},
          "width": {"value": 1}
        }
      }
    }
  ],
  "scales": [
    {
      "name": "x",
      "type": "linear",
      "domain": {
        "fields": [
          {"data": "data_0", "field": "IMDB Rating_start"},
          {"data": "data_0", "field": "IMDB Rating_end"},
          {"data": "data_1", "field": "AverageYearRating"}
        ]
      },
      "range": [0, {"signal": "width"}],
      "nice": true,
      "zero": true
    },
    {
      "name": "y",
      "type": "band",
      "domain": {
        "fields": [
          {"data": "data_0", "field": "Title"},
          {"data": "data_1", "field": "Title"}
        ],
        "sort": true
      },
      "range": {"step": {"signal": "y_step"}},
      "paddingInner": 0.1,
      "paddingOuter": 0.05
    }
  ],
  "axes": [
    {
      "scale": "x",
      "orient": "bottom",
      "gridScale": "y",
      "grid": true,
      "tickCount": {"signal": "ceil(width/40)"},
      "domain": false,
      "labels": false,
      "aria": false,
      "maxExtent": 0,
      "minExtent": 0,
      "ticks": false,
      "zindex": 0
    },
    {
      "scale": "x",
      "orient": "bottom",
      "grid": false,
      "title": "IMDB Rating",
      "labelFlush": true,
      "labelOverlap": true,
      "tickCount": {"signal": "ceil(width/40)"},
      "zindex": 0
    },
    {
      "scale": "y",
      "orient": "left",
      "grid": false,
      "title": "Title",
      "zindex": 0
    }
  ]
}