"""
Boxplot with Min/Max Whiskers
------------------------------
This example shows how to make a boxplot using US Population data from 2000.
Note that the default value of the `extent` property is 1.5,
which represents the convention of extending the whiskers
to the furthest points within 1.5 * IQR from the first and third quartile.
"""
# category: other charts
import altair as alt
from vega_datasets import data

source = data.population()

(
    alt.Chart(source)
    .mark_boxplot(extent="min-max")
    .encode(x="age:O", y="people:Q")
)
