{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "description": "A simple grid of bar charts to compare performance data.",
  "background": "white",
  "padding": 5,
  "data": [
    {
      "name": "source_0",
      "values": [
        {"a": "a1", "b": "b1", "c": "x", "p": "0.14"},
        {"a": "a1", "b": "b1", "c": "y", "p": "0.60"},
        {"a": "a1", "b": "b1", "c": "z", "p": "0.03"},
        {"a": "a1", "b": "b2", "c": "x", "p": "0.80"},
        {"a": "a1", "b": "b2", "c": "y", "p": "0.38"},
        {"a": "a1", "b": "b2", "c": "z", "p": "0.55"},
        {"a": "a1", "b": "b3", "c": "x", "p": "0.11"},
        {"a": "a1", "b": "b3", "c": "y", "p": "0.58"},
        {"a": "a1", "b": "b3", "c": "z", "p": "0.79"},
        {"a": "a2", "b": "b1", "c": "x", "p": "0.83"},
        {"a": "a2", "b": "b1", "c": "y", "p": "0.87"},
        {"a": "a2", "b": "b1", "c": "z", "p": "0.67"},
        {"a": "a2", "b": "b2", "c": "x", "p": "0.97"},
        {"a": "a2", "b": "b2", "c": "y", "p": "0.84"},
        {"a": "a2", "b": "b2", "c": "z", "p": "0.90"},
        {"a": "a2", "b": "b3", "c": "x", "p": "0.74"},
        {"a": "a2", "b": "b3", "c": "y", "p": "0.64"},
        {"a": "a2", "b": "b3", "c": "z", "p": "0.19"},
        {"a": "a3", "b": "b1", "c": "x", "p": "0.57"},
        {"a": "a3", "b": "b1", "c": "y", "p": "0.35"},
        {"a": "a3", "b": "b1", "c": "z", "p": "0.49"},
        {"a": "a3", "b": "b2", "c": "x", "p": "0.91"},
        {"a": "a3", "b": "b2", "c": "y", "p": "0.38"},
        {"a": "a3", "b": "b2", "c": "z", "p": "0.91"},
        {"a": "a3", "b": "b3", "c": "x", "p": "0.99"},
        {"a": "a3", "b": "b3", "c": "y", "p": "0.80"},
        {"a": "a3", "b": "b3", "c": "z", "p": "0.37"}
      ]
    },
    {
      "name": "data_0",
      "source": "source_0",
      "transform": [
        {
          "type": "stack",
          "groupby": ["c", "a", "b"],
          "field": "p",
          "sort": {"field": [], "order": []},
          "as": ["p_start", "p_end"],
          "offset": "zero"
        },
        {
          "type": "filter",
          "expr": "isValid(datum[\"p\"]) && isFinite(+datum[\"p\"])"
        }
      ]
    },
    {
      "name": "column_domain",
      "source": "data_0",
      "transform": [{"type": "aggregate", "groupby": ["b"]}]
    },
    {
      "name": "row_domain",
      "source": "data_0",
      "transform": [{"type": "aggregate", "groupby": ["a"]}]
    }
  ],
  "signals": [
    {"name": "child_width", "value": 60},
    {"name": "y_step", "value": 8},
    {
      "name": "child_height",
      "update": "bandspace(domain('y').length, 0.1, 0.05) * y_step"
    }
  ],
  "layout": {
    "padding": 5,
    "offset": {"rowTitle": 10, "columnTitle": 10},
    "columns": {"signal": "length(data('column_domain'))"},
    "bounds": "full",
    "align": "all"
  },
  "marks": [
    {
      "name": "row-title",
      "type": "group",
      "role": "row-title",
      "title": {
        "text": "Factor A",
        "orient": "left",
        "style": "guide-title",
        "offset": 10
      }
    },
    {
      "name": "column-title",
      "type": "group",
      "role": "column-title",
      "title": {"text": "Factor B", "style": "guide-title", "offset": 10}
    },
    {
      "name": "row_header",
      "type": "group",
      "role": "row-header",
      "from": {"data": "row_domain"},
      "sort": {"field": "datum[\"a\"]", "order": "ascending"},
      "title": {
        "text": {
          "signal": "isValid(parent[\"a\"]) ? parent[\"a\"] : \"\"+parent[\"a\"]"
        },
        "orient": "left",
        "style": "guide-label",
        "frame": "group",
        "baseline": "middle",
        "align": "right",
        "angle": 0,
        "offset": 10
      },
      "encode": {"update": {"height": {"signal": "child_height"}}}
    },
    {
      "name": "column_header",
      "type": "group",
      "role": "column-header",
      "from": {"data": "column_domain"},
      "sort": {"field": "datum[\"b\"]", "order": "ascending"},
      "title": {
        "text": {
          "signal": "isValid(parent[\"b\"]) ? parent[\"b\"] : \"\"+parent[\"b\"]"
        },
        "style": "guide-label",
        "frame": "group",
        "offset": 10
      },
      "encode": {"update": {"width": {"signal": "child_width"}}}
    },
    {
      "name": "column_footer",
      "type": "group",
      "role": "column-footer",
      "from": {"data": "column_domain"},
      "sort": {"field": "datum[\"b\"]", "order": "ascending"},
      "encode": {"update": {"width": {"signal": "child_width"}}},
      "axes": [
        {
          "scale": "x",
          "orient": "bottom",
          "grid": false,
          "format": "%",
          "labelFlush": true,
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(child_width/40)"},
          "zindex": 0
        }
      ]
    },
    {
      "name": "cell",
      "type": "group",
      "style": "cell",
      "from": {
        "facet": {
          "name": "facet",
          "data": "data_0",
          "groupby": ["a", "b"],
          "aggregate": {"cross": true}
        }
      },
      "sort": {
        "field": ["datum[\"a\"]", "datum[\"b\"]"],
        "order": ["ascending", "ascending"]
      },
      "encode": {
        "update": {
          "width": {"signal": "child_width"},
          "height": {"signal": "child_height"}
        }
      },
      "marks": [
        {
          "name": "child_marks",
          "type": "rect",
          "style": ["bar"],
          "from": {"data": "facet"},
          "encode": {
            "update": {
              "fill": {"scale": "color", "field": "c"},
              "ariaRoleDescription": {"value": "bar"},
              "description": {
                "signal": "\"p: \" + (format(datum[\"p\"], \"%\")) + \"; c: \" + (isValid(datum[\"c\"]) ? datum[\"c\"] : \"\"+datum[\"c\"]) + \"; settings: \" + (isValid(datum[\"c\"]) ? datum[\"c\"] : \"\"+datum[\"c\"])"
              },
              "x": {"scale": "x", "field": "p_end"},
              "x2": {"scale": "x", "field": "p_start"},
              "y": {"scale": "y", "field": "c"},
              "height": {"scale": "y", "band": 1}
            }
          }
        }
      ],
      "axes": [
        {
          "scale": "x",
          "orient": "bottom",
          "gridScale": "y",
          "grid": true,
          "tickCount": {"signal": "ceil(child_width/40)"},
          "domain": false,
          "labels": false,
          "aria": false,
          "maxExtent": 0,
          "minExtent": 0,
          "ticks": false,
          "zindex": 0
        }
      ]
    }
  ],
  "scales": [
    {
      "name": "x",
      "type": "linear",
      "domain": {"data": "data_0", "fields": ["p_start", "p_end"]},
      "range": [0, {"signal": "child_width"}],
      "nice": true,
      "zero": true
    },
    {
      "name": "y",
      "type": "band",
      "domain": {"data": "data_0", "field": "c", "sort": true},
      "range": {"step": {"signal": "y_step"}},
      "paddingInner": 0.1,
      "paddingOuter": 0.05
    },
    {
      "name": "color",
      "type": "ordinal",
      "domain": {"data": "data_0", "field": "c", "sort": true},
      "range": "category"
    }
  ],
  "legends": [
    {
      "orient": "bottom",
      "title": "settings",
      "titleOrient": "left",
      "fill": "color",
      "direction": "horizontal",
      "symbolType": "square"
    }
  ]
}