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bar_argmax_transform.vg.json
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bar_argmax_transform.vg.json
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{
"$schema": "https://vega.github.io/schema/vega/v5.json",
"description": "The production budget of the movie that has the highest US Gross in each major genre.",
"background": "white",
"padding": 5,
"width": 200,
"style": "cell",
"data": [
{
"name": "source_0",
"url": "data/movies.json",
"format": {"type": "json"},
"transform": [
{
"type": "aggregate",
"groupby": ["Major Genre"],
"ops": ["argmax"],
"fields": ["US Gross"],
"as": ["argmax_US_Gross"]
},
{
"type": "formula",
"expr": "datum[\"argmax_US_Gross\"] && datum[\"argmax_US_Gross\"][\"Production Budget\"]",
"as": "argmax_US_Gross.Production Budget"
},
{
"type": "stack",
"groupby": ["Major Genre"],
"field": "argmax_US_Gross\\.Production Budget",
"sort": {"field": [], "order": []},
"as": [
"argmax_US_Gross.Production Budget._start",
"argmax_US_Gross.Production Budget._end"
],
"offset": "zero"
},
{
"type": "filter",
"expr": "isValid(datum[\"argmax_US_Gross.Production Budget\"]) && isFinite(+datum[\"argmax_US_Gross.Production Budget\"])"
}
]
}
],
"signals": [
{"name": "y_step", "value": 20},
{
"name": "height",
"update": "bandspace(domain('y').length, 0.1, 0.05) * y_step"
}
],
"marks": [
{
"name": "marks",
"type": "rect",
"style": ["bar"],
"from": {"data": "source_0"},
"encode": {
"update": {
"fill": {"value": "#4c78a8"},
"ariaRoleDescription": {"value": "bar"},
"description": {
"signal": "\"argmax_US_Gross['Production Budget']: \" + (format(datum[\"argmax_US_Gross.Production Budget\"], \"\")) + \"; Major Genre: \" + (isValid(datum[\"Major Genre\"]) ? datum[\"Major Genre\"] : \"\"+datum[\"Major Genre\"])"
},
"x": {
"scale": "x",
"field": "argmax_US_Gross\\.Production Budget\\._end"
},
"x2": {
"scale": "x",
"field": "argmax_US_Gross\\.Production Budget\\._start"
},
"y": {"scale": "y", "field": "Major Genre"},
"height": {"signal": "max(0.25, bandwidth('y'))"}
}
}
}
],
"scales": [
{
"name": "x",
"type": "linear",
"domain": {
"data": "source_0",
"fields": [
"argmax_US_Gross\\.Production Budget\\._start",
"argmax_US_Gross\\.Production Budget\\._end"
]
},
"range": [0, {"signal": "width"}],
"nice": true,
"zero": true
},
{
"name": "y",
"type": "band",
"domain": {"data": "source_0", "field": "Major Genre", "sort": true},
"range": {"step": {"signal": "y_step"}},
"paddingInner": 0.1,
"paddingOuter": 0.05
}
],
"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": "x",
"orient": "bottom",
"grid": false,
"title": "argmax_US_Gross['Production Budget']",
"labelFlush": true,
"labelOverlap": true,
"tickCount": {"signal": "ceil(width/40)"},
"zindex": 0
},
{
"scale": "y",
"orient": "left",
"grid": false,
"title": "Major Genre",
"zindex": 0
}
]
}