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

20 lines
441 B
Python

"""
Filled Step Chart
-----------------
This example shows Google's stock price over time as a step chart with its area filled in and its line emphasized.
"""
# category: line charts
import altair as alt
from vega_datasets import data
source = data.stocks()
alt.Chart(source).mark_area(
color="lightblue",
interpolate='step-after',
line=True
).encode(
x='date',
y='price'
).transform_filter(alt.datum.symbol == 'GOOG')