Trellis Area

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "description": "Stock prices of four large companies as a small multiples of area charts.",
  "transform": [{"filter": "datum.symbol !== 'GOOG'"}],
  "width": 300,
  "height": 40,
  "data": {"url": "data/stocks.csv"},
  "mark": "area",
  "encoding": {
    "x": {
      "field": "date",
      "type": "temporal",
      "title": "Time",
      "axis": {"grid": false}
    },
    "y": {
      "field": "price",
      "type": "quantitative",
      "title": "Price",
      "axis": {"grid": false}
    },
    "color": {
      "field": "symbol",
      "type": "nominal",
      "legend": null
    },
    "row": {
      "field": "symbol",
      "type": "nominal",
      "title": "Symbol"
    }
  }
}