Example vega-lite chart with independent y axis'

example-vega-lite-chart-with-independent-y-axis.json

{
  "$schema": "https://vega.github.io/schema/vega-lite/v2.json",
  "layer": [
    {
      "data": {
        "url": "https://vega.github.io/vega-lite/data/seattle-weather.csv"
      },
      "mark": "line",
      "encoding": {
        "x": {
          "field": "date",
          "type": "temporal"
        },
        "y": {
          "field": "temp_min",
          "type": "quantitative",
          "axis": {
            "orient": "left"
          }
        }
      }
    },
    {
      "data": {
        "url": "data/stocks.csv"
      },
      "transform": [
        {
          "filter": "datum.symbol==='GOOG'"
        }
      ],
      "mark": "line",
      "encoding": {
        "x": {
          "field": "date",
          "type": "temporal"
        },
        "y": {
          "field": "price",
          "type": "quantitative",
          "axis": {
            "orient": "right"
          }
        }
      }
    }
  ],
  "resolve": {"y": {"scale": "independent"}}
}