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bar_grouped_step_for_offset.vg.json
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bar_grouped_step_for_offset.vg.json
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{
"$schema": "https://vega.github.io/schema/vega/v5.json",
"background": "white",
"padding": 5,
"height": 200,
"style": "cell",
"data": [
{
"name": "source_0",
"values": [
{"category": "A", "group": "x", "value": 0.1},
{"category": "A", "group": "y", "value": 0.6},
{"category": "A", "group": "z", "value": 0.9},
{"category": "B", "group": "x", "value": 0.7},
{"category": "B", "group": "y", "value": 0.2},
{"category": "B", "group": "z", "value": 1.1},
{"category": "C", "group": "x", "value": 0.6},
{"category": "C", "group": "y", "value": 0.1},
{"category": "C", "group": "z", "value": 0.2}
]
},
{
"name": "data_0",
"source": "source_0",
"transform": [
{
"type": "stack",
"groupby": ["category", "group"],
"field": "value",
"sort": {"field": [], "order": []},
"as": ["value_start", "value_end"],
"offset": "zero"
},
{
"type": "filter",
"expr": "isValid(datum[\"value\"]) && isFinite(+datum[\"value\"])"
}
]
}
],
"signals": [
{
"name": "x_step",
"update": "24 * bandspace(domain('xOffset').length, 0, 0) / (1-0.2)"
},
{
"name": "width",
"update": "bandspace(domain('x').length, 0.2, 0.2) * x_step"
}
],
"marks": [
{
"name": "marks",
"type": "rect",
"style": ["bar"],
"from": {"data": "data_0"},
"encode": {
"update": {
"fill": {"scale": "color", "field": "group"},
"ariaRoleDescription": {"value": "bar"},
"description": {
"signal": "\"category: \" + (isValid(datum[\"category\"]) ? datum[\"category\"] : \"\"+datum[\"category\"]) + \"; value: \" + (format(datum[\"value\"], \"\")) + \"; group: \" + (isValid(datum[\"group\"]) ? datum[\"group\"] : \"\"+datum[\"group\"])"
},
"x": {
"scale": "x",
"field": "category",
"offset": {"scale": "xOffset", "field": "group"}
},
"width": {"signal": "max(0.25, bandwidth('xOffset'))"},
"y": {"scale": "y", "field": "value_end"},
"y2": {"scale": "y", "field": "value_start"}
}
}
}
],
"scales": [
{
"name": "x",
"type": "band",
"domain": {"data": "data_0", "field": "category", "sort": true},
"range": {"step": {"signal": "x_step"}},
"paddingInner": 0.2,
"paddingOuter": 0.2
},
{
"name": "y",
"type": "linear",
"domain": {"data": "data_0", "fields": ["value_start", "value_end"]},
"range": [{"signal": "height"}, 0],
"nice": true,
"zero": true
},
{
"name": "xOffset",
"type": "band",
"domain": {"data": "data_0", "field": "group", "sort": true},
"range": {"step": 24}
},
{
"name": "color",
"type": "ordinal",
"domain": {"data": "data_0", "field": "group", "sort": true},
"range": "category"
}
],
"axes": [
{
"scale": "x",
"orient": "bottom",
"grid": false,
"title": "category",
"labelAlign": "right",
"labelAngle": 270,
"labelBaseline": "middle",
"zindex": 0
},
{
"scale": "y",
"orient": "left",
"grid": false,
"title": "population",
"labelOverlap": true,
"tickCount": {"signal": "ceil(height/40)"},
"zindex": 0
}
],
"legends": [{"fill": "color", "symbolType": "square", "title": "group"}]
}