{ "$schema": "https://vega.github.io/schema/vega/v5.json", "description": "Google's stock price over time.", "background": "white", "padding": 5, "width": 200, "height": 200, "style": "cell", "data": [ { "name": "source_0", "url": "data/stocks.csv", "format": {"type": "csv", "parse": {"date": "date"}}, "transform": [{"type": "filter", "expr": "datum.symbol==='GOOG'"}] } ], "marks": [ { "name": "layer_0_marks", "type": "area", "style": ["area"], "sort": {"field": "datum[\"date\"]"}, "from": {"data": "source_0"}, "encode": { "update": { "opacity": {"value": 0.7}, "orient": {"value": "vertical"}, "fill": { "value": { "x1": 1, "y1": 1, "x2": 1, "y2": 0, "gradient": "linear", "stops": [ {"offset": 0, "color": "white"}, {"offset": 1, "color": "darkgreen"} ] } }, "description": { "signal": "\"date: \" + (timeFormat(datum[\"date\"], '%b %d, %Y')) + \"; price: \" + (format(datum[\"price\"], \"\"))" }, "x": {"scale": "x", "field": "date"}, "y": {"scale": "y", "field": "price"}, "y2": {"scale": "y", "value": 0}, "defined": { "signal": "isValid(datum[\"date\"]) && isFinite(+datum[\"date\"]) && isValid(datum[\"price\"]) && isFinite(+datum[\"price\"])" } } } }, { "name": "layer_1_marks", "type": "line", "style": ["line"], "sort": {"field": "datum[\"date\"]"}, "from": {"data": "source_0"}, "encode": { "update": { "stroke": {"value": "darkgreen"}, "description": { "signal": "\"date: \" + (timeFormat(datum[\"date\"], '%b %d, %Y')) + \"; price: \" + (format(datum[\"price\"], \"\"))" }, "x": {"scale": "x", "field": "date"}, "y": {"scale": "y", "field": "price"}, "defined": { "signal": "isValid(datum[\"date\"]) && isFinite(+datum[\"date\"]) && isValid(datum[\"price\"]) && isFinite(+datum[\"price\"])" } } } } ], "scales": [ { "name": "x", "type": "time", "domain": {"data": "source_0", "field": "date"}, "range": [0, {"signal": "width"}] }, { "name": "y", "type": "linear", "domain": {"data": "source_0", "field": "price"}, "range": [{"signal": "height"}, 0], "nice": true, "zero": true } ], "axes": [ { "scale": "x", "orient": "bottom", "gridScale": "y", "grid": true, "tickCount": {"signal": "ceil(width/40)"}, "domain": false, "labels": false, "aria": false, "maxExtent": 0, "minExtent": 0, "ticks": false, "zindex": 0 }, { "scale": "y", "orient": "left", "gridScale": "x", "grid": true, "tickCount": {"signal": "ceil(height/40)"}, "domain": false, "labels": false, "aria": false, "maxExtent": 0, "minExtent": 0, "ticks": false, "zindex": 0 }, { "scale": "x", "orient": "bottom", "grid": false, "title": "date", "labelFlush": true, "labelOverlap": true, "tickCount": {"signal": "ceil(width/40)"}, "zindex": 0 }, { "scale": "y", "orient": "left", "grid": false, "title": "price", "labelOverlap": true, "tickCount": {"signal": "ceil(height/40)"}, "zindex": 0 } ]}