{ "data": { "url": "https://vega.github.io/vega-lite/data/weather.csv" }, "repeat": { "column": [ "temp_max", "precipitation", "wind" ] }, "spec": { "layer": [ { "mark": "line", "encoding": { "color": { "field": "location", "type": "nominal" }, "opacity": { "value": 0.2 }, "x": { "field": "date", "timeUnit": "month", "type": "ordinal" }, "detail": { "field": "date", "timeUnit": "year", "type": "temporal" }, "y": { "field": { "repeat": "column" }, "aggregate": "mean", "type": "quantitative" } } }, { "mark": "line", "encoding": { "color": { "field": "location", "type": "nominal" }, "x": { "field": "date", "timeUnit": "month", "type": "ordinal" }, "y": { "field": { "repeat": "column" }, "aggregate": "mean", "type": "quantitative" } } } ] }, "$schema": "https://vega.github.io/schema/vega-lite/v4.json", "description": "Monthly weather information for individual years and overall average for Seatle and New York" }