{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "background": "white",
  "padding": 5,
  "width": 20,
  "height": 200,
  "style": "cell",
  "data": [
    {
      "name": "source_0",
      "url": "data/barley.json",
      "format": {"type": "json"},
      "transform": [
        {
          "type": "aggregate",
          "groupby": [],
          "ops": ["mean", "mean", "stderr"],
          "fields": ["yield", "yield", "yield"],
          "as": ["mean_yield", "center_yield", "extent_yield"]
        }
      ]
    },
    {
      "name": "data_0",
      "source": "source_0",
      "transform": [
        {
          "type": "filter",
          "expr": "isValid(datum[\"mean_yield\"]) && isFinite(+datum[\"mean_yield\"])"
        }
      ]
    },
    {
      "name": "data_1",
      "source": "source_0",
      "transform": [
        {
          "type": "formula",
          "expr": "datum[\"center_yield\"] + datum[\"extent_yield\"]",
          "as": "upper_yield"
        },
        {
          "type": "formula",
          "expr": "datum[\"center_yield\"] - datum[\"extent_yield\"]",
          "as": "lower_yield"
        },
        {
          "type": "filter",
          "expr": "isValid(datum[\"lower_yield\"]) && isFinite(+datum[\"lower_yield\"])"
        }
      ]
    }
  ],
  "marks": [
    {
      "name": "layer_0_marks",
      "type": "rule",
      "style": ["rule", "errorbar-rule"],
      "from": {"data": "data_1"},
      "encode": {
        "update": {
          "ariaRoleDescription": {"value": "errorbar"},
          "stroke": {"value": "black"},
          "tooltip": {
            "signal": "{\"Mean of yield\": format(datum[\"center_yield\"], \"\"), \"Mean + stderr of yield\": format(datum[\"upper_yield\"], \"\"), \"Mean - stderr of yield\": format(datum[\"lower_yield\"], \"\")}"
          },
          "description": {
            "signal": "\"yield: \" + (format(datum[\"lower_yield\"], \"\")) + \"; upper_yield: \" + (format(datum[\"upper_yield\"], \"\")) + \"; Mean of yield: \" + (format(datum[\"center_yield\"], \"\")) + \"; Mean + stderr of yield: \" + (format(datum[\"upper_yield\"], \"\")) + \"; Mean - stderr of yield: \" + (format(datum[\"lower_yield\"], \"\"))"
          },
          "x": {"signal": "width", "mult": 0.5},
          "y": {"scale": "y", "field": "lower_yield"},
          "y2": {"scale": "y", "field": "upper_yield"}
        }
      }
    },
    {
      "name": "layer_1_marks",
      "type": "symbol",
      "style": ["point"],
      "from": {"data": "data_0"},
      "encode": {
        "update": {
          "fill": {"value": "black"},
          "ariaRoleDescription": {"value": "point"},
          "description": {
            "signal": "\"Mean of yield: \" + (format(datum[\"mean_yield\"], \"\"))"
          },
          "x": {"signal": "width", "mult": 0.5},
          "y": {"scale": "y", "field": "mean_yield"}
        }
      }
    }
  ],
  "scales": [
    {
      "name": "y",
      "type": "linear",
      "domain": {
        "fields": [
          {"data": "data_1", "field": "lower_yield"},
          {"data": "data_1", "field": "upper_yield"},
          {"data": "data_0", "field": "mean_yield"}
        ]
      },
      "range": [{"signal": "height"}, 0],
      "zero": false,
      "nice": true
    }
  ],
  "axes": [
    {
      "scale": "y",
      "orient": "left",
      "grid": true,
      "tickCount": {"signal": "ceil(height/40)"},
      "domain": false,
      "labels": false,
      "aria": false,
      "maxExtent": 0,
      "minExtent": 0,
      "ticks": false,
      "zindex": 0
    },
    {
      "scale": "y",
      "orient": "left",
      "grid": false,
      "title": "yield",
      "labelOverlap": true,
      "tickCount": {"signal": "ceil(height/40)"},
      "zindex": 0
    }
  ]
}