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"""
Multi-panel Scatter Plot with Linked Brushing
---------------------------------------------
This is an example of using an interval selection to control the color of
points across multiple panels.
"""
# category: interactive charts
import altair as alt
from vega_datasets import data
source = data.cars()
brush = alt.selection_interval(resolve='global')
base = alt.Chart(source).mark_point().encode(
y='Miles_per_Gallon',
color=alt.condition(brush, 'Origin', alt.ColorValue('gray')),
).add_params(
brush
).properties(
width=250,
height=250
)
base.encode(x='Horsepower') | base.encode(x='Acceleration')
|
