2022-05-23 00:16:32 +04:00

17 lines
331 B
Python

"""
Layered Area Chart
------------------
This example shows a layered area chart.
"""
# category: area charts
import altair as alt
from vega_datasets import data
source = data.iowa_electricity()
alt.Chart(source).mark_area(opacity=0.3).encode(
x="year:T",
y=alt.Y("net_generation:Q", stack=None),
color="source:N"
)