{ "$schema": "https://vega.github.io/schema/vega-lite/v4.json", "description": "Punchcard Visualization like on Github. The day on y-axis uses a custom order from Monday to Sunday. The sort property supports both full day names (e.g., 'Monday') and their three letter initials (e.g., 'mon') -- both of which are case insensitive.", "data": { "url": "data/github.csv"}, "mark": "circle", "encoding": { "y": { "field": "time", "type": "ordinal", "timeUnit": "day", "sort": ["mon", "tue", "wed", "thu", "fri", "sat", "sun"] }, "x": { "field": "time", "type": "ordinal", "timeUnit": "hours" }, "size": { "field": "count", "type": "quantitative", "aggregate": "sum" } }}