label6.vl

{
    "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
    "data": {
        "url": "https://vega.github.io/vega-lite/data/movies.json"
    },
    "description": "Histogram with global mean overlay",
    "layer": [
        {
            "encoding": {
                "x": {
                    "axis": null,
                    "bin": true,
                    "field": "IMDB_Rating",
                    "type": "quantitative"
                },
                "y": {
                    "aggregate": "count",
                    "type": "quantitative"
                }
            },
            "mark": "bar"
        },
        {
            "encoding": {
                "color": {
                    "value": "red"
                },
                "size": {
                    "value": 5
                },
                "x": {
                    "aggregate": "mean",
                    "field": "IMDB_Rating",
                    "type": "quantitative"
                }
            },
            "mark": "rule"
        }
    ]
}