{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "background": "white",
  "padding": 5,
  "width": 550,
  "title": {
    "text": "2010 Daily High Temperature (F) in Seattle, WA",
    "frame": "group"
  },
  "style": "cell",
  "data": [
    {
      "name": "source_0",
      "url": "https://raw.githubusercontent.com/vega/vega-datasets/v1.31.1/data/seattle-temps.csv",
      "format": {
        "type": "csv",
        "parse": {"date": "date", "temp": "number"},
        "delimiter": ","
      },
      "transform": [
        {
          "field": "date",
          "type": "timeunit",
          "units": ["date"],
          "as": ["date_date", "date_date_end"]
        },
        {
          "field": "date",
          "type": "timeunit",
          "units": ["month"],
          "as": ["month_date", "month_date_end"]
        },
        {
          "field": "date",
          "type": "timeunit",
          "units": ["month", "date"],
          "as": ["monthdate_date", "monthdate_date_end"]
        },
        {
          "type": "aggregate",
          "groupby": [
            "date_date",
            "month_date",
            "monthdate_date",
            "monthdate_date_end"
          ],
          "ops": ["max"],
          "fields": ["temp"],
          "as": ["max_temp"]
        },
        {
          "type": "filter",
          "expr": "isValid(datum[\"max_temp\"]) && isFinite(+datum[\"max_temp\"])"
        }
      ]
    }
  ],
  "signals": [
    {"name": "y_step", "value": 20},
    {"name": "height", "update": "bandspace(domain('y').length, 0, 0) * y_step"}
  ],
  "marks": [
    {
      "name": "marks",
      "type": "rect",
      "style": ["rect"],
      "from": {"data": "source_0"},
      "encode": {
        "update": {
          "fill": {"scale": "color", "field": "max_temp"},
          "tooltip": {
            "signal": "{\"Date\": timeFormat(datum[\"monthdate_date\"], timeUnitSpecifier([\"month\",\"date\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})), \"Max Temp\": format(datum[\"max_temp\"], \"\")}"
          },
          "description": {
            "signal": "\"date (date): \" + (timeFormat(datum[\"date_date\"], timeUnitSpecifier([\"date\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"}))) + \"; date (month): \" + (timeFormat(datum[\"month_date\"], timeUnitSpecifier([\"month\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"}))) + \"; Max of temp: \" + (format(datum[\"max_temp\"], \"\")) + \"; Date: \" + (timeFormat(datum[\"monthdate_date\"], timeUnitSpecifier([\"month\",\"date\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"}))) + \"; Max Temp: \" + (format(datum[\"max_temp\"], \"\"))"
          },
          "x": {"scale": "x", "field": "date_date"},
          "width": {"scale": "x", "band": 1},
          "y": {"scale": "y", "field": "month_date"},
          "height": {"scale": "y", "band": 1}
        }
      }
    }
  ],
  "scales": [
    {
      "name": "x",
      "type": "band",
      "domain": {"data": "source_0", "field": "date_date", "sort": true},
      "range": [0, {"signal": "width"}],
      "paddingInner": 0,
      "paddingOuter": 0
    },
    {
      "name": "y",
      "type": "band",
      "domain": {"data": "source_0", "field": "month_date", "sort": true},
      "range": {"step": {"signal": "y_step"}},
      "paddingInner": 0,
      "paddingOuter": 0
    },
    {
      "name": "color",
      "type": "linear",
      "domain": {"data": "source_0", "field": "max_temp"},
      "range": {"scheme": "inferno"},
      "interpolate": "hcl",
      "zero": false
    }
  ],
  "axes": [
    {
      "scale": "x",
      "orient": "bottom",
      "grid": false,
      "title": "date (date)",
      "format": {
        "signal": "timeUnitSpecifier([\"date\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})"
      },
      "formatType": "time",
      "labelOverlap": true,
      "zindex": 1
    },
    {
      "scale": "y",
      "orient": "left",
      "grid": false,
      "title": "date (month)",
      "format": {
        "signal": "timeUnitSpecifier([\"month\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})"
      },
      "formatType": "time",
      "labelOverlap": true,
      "zindex": 1
    }
  ],
  "legends": [
    {
      "fill": "color",
      "gradientLength": {"signal": "clamp(height, 64, 200)"},
      "title": "Max of temp"
    }
  ]
}