vega-extension¶
In [1]:
from IPython.display import display
import pandas as pd
def Vega(spec):
bundle = {}
bundle['application/vnd.vega.v5+json'] = spec
display(bundle, raw=True)
def VegaLite(spec):
bundle = {}
bundle['application/vnd.vegalite.v4+json'] = spec
display(bundle, raw=True)
Vega(spec: dict)¶
In [2]:
Vega(
{
"$schema": "https://vega.github.io/schema/vega/v5.0.json",
"width": 400,
"height": 200,
"padding": 5,
"data": [
{
"name": "table",
"values": [
{"category": "A", "amount": 28},
{"category": "B", "amount": 55},
{"category": "C", "amount": 43},
{"category": "D", "amount": 91},
{"category": "E", "amount": 81},
{"category": "F", "amount": 53},
{"category": "G", "amount": 19},
{"category": "H", "amount": 87},
],
}
],
"signals": [
{
"name": "tooltip",
"value": {},
"on": [
{"events": "rect:mouseover", "update": "datum"},
{"events": "rect:mouseout", "update": "{}"},
],
}
],
"scales": [
{
"name": "xscale",
"type": "band",
"domain": {"data": "table", "field": "category"},
"range": "width",
"padding": 0.05,
"round": True,
},
{
"name": "yscale",
"domain": {"data": "table", "field": "amount"},
"nice": True,
"range": "height",
},
],
"axes": [{"orient": "bottom", "scale": "xscale"}, {"orient": "left", "scale": "yscale"}],
"marks": [
{
"type": "rect",
"from": {"data": "table"},
"encode": {
"enter": {
"x": {"scale": "xscale", "field": "category"},
"width": {"scale": "xscale", "band": 1},
"y": {"scale": "yscale", "field": "amount"},
"y2": {"scale": "yscale", "value": 0},
},
"update": {"fill": {"value": "steelblue"}},
"hover": {"fill": {"value": "red"}},
},
},
{
"type": "text",
"encode": {
"enter": {
"align": {"value": "center"},
"baseline": {"value": "bottom"},
"fill": {"value": "#333"},
},
"update": {
"x": {"scale": "xscale", "signal": "tooltip.category", "band": 0.5},
"y": {"scale": "yscale", "signal": "tooltip.amount", "offset": -2},
"text": {"signal": "tooltip.amount"},
"fillOpacity": [{"test": "datum === tooltip", "value": 0}, {"value": 1}],
},
},
},
],
}
)
Vega(spec: string)¶
In [3]:
Vega('https://raw.githubusercontent.com/vega/vega/master/docs/examples/bar-chart.vg.json')
VegaLite(spec: dict)¶
In [4]:
VegaLite(
{
"$schema": "https://vega.github.io/schema/vega-lite/v4.json",
"description": "A simple bar chart with embedded data.",
"data": {
"values": [
{"a": "A", "b": 28},
{"a": "B", "b": 55},
{"a": "C", "b": 43},
{"a": "D", "b": 91},
{"a": "E", "b": 81},
{"a": "F", "b": 53},
{"a": "G", "b": 19},
{"a": "H", "b": 87},
{"a": "I", "b": 52},
]
},
"mark": "bar",
"encoding": {
"x": {"field": "a", "type": "ordinal"},
"y": {"field": "b", "type": "quantitative"},
},
}
)
VegaLite(spec: string)¶
In [5]:
VegaLite('https://raw.githubusercontent.com/vega/vega-lite/master/examples/specs/bar.vl.json')
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