User:Dario (WMF)/Sandbox

 { "$schema": "https://vega.github.io/schema/vega/v4.json", "width": 200, "height": 200, "padding": 5,

"data": [ {     "name": "source", "url": "data/cars.json", "transform": [ {         "type": "filter", "expr": "datum['Horsepower'] != null && datum['Miles_per_Gallon'] != null && datum['Acceleration'] != null" }     ]    }  ],

"scales": [ {     "name": "x", "type": "linear", "round": true, "nice": true, "zero": true, "domain": {"data": "source", "field": "Horsepower"}, "range": "width" },   {      "name": "y", "type": "linear", "round": true, "nice": true, "zero": true, "domain": {"data": "source", "field": "Miles_per_Gallon"}, "range": "height" },   {      "name": "size", "type": "linear", "round": true, "nice": false, "zero": true, "domain": {"data": "source", "field": "Acceleration"}, "range": [4,361] } ],

"axes": [ {     "scale": "x", "grid": true, "domain": false, "orient": "bottom", "tickCount": 5, "title": "Horsepower" },   {      "scale": "y", "grid": true, "domain": false, "orient": "left", "titlePadding": 5, "title": "Miles_per_Gallon" } ],

"legends": [ {     "size": "size", "title": "Acceleration", "format": "s", "encode": { "symbols": { "update": { "strokeWidth": {"value": 2}, "opacity": {"value": 0.5}, "stroke": {"value": "#4682b4"}, "shape": {"value": "circle"} }       }      }    }  ],

"marks": [ {     "name": "marks", "type": "symbol", "from": {"data": "source"}, "encode": { "update": { "x": {"scale": "x", "field": "Horsepower"}, "y": {"scale": "y", "field": "Miles_per_Gallon"}, "size": {"scale": "size", "field": "Acceleration"}, "shape": {"value": "circle"}, "strokeWidth": {"value": 2}, "opacity": {"value": 0.5}, "stroke": {"value": "#4682b4"}, "fill": {"value": "transparent"} }     }    }  ] }