strokedash2.vl

{
    "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
    "data": {
        "url": "https://vega.github.io/vega-lite/data/stocks.csv"
    },
    "encoding": {
        "strokeDash": {
            "field": "symbol",
            "scale": {
                "domain": [
                    "AAPL",
                    "AMZN",
                    "GOOG",
                    "IBM",
                    "MSFT"
                ],
                "range": [
                    [
                        1,
                        0
                    ],
                    [
                        3,
                        1
                    ],
                    [
                        2,
                        3
                    ],
                    [
                        4,
                        4
                    ],
                    [
                        5,
                        6
                    ]
                ]
            },
            "type": "nominal"
        },
        "x": {
            "field": "date",
            "type": "temporal"
        },
        "y": {
            "field": "price",
            "type": "quantitative"
        }
    },
    "mark": {
        "opacity": 0.6,
        "strokeWidth": 1,
        "type": "line"
    },
    "width": 350
}