Correct boxplot example to reflect title
"""
-Box Plot with Min/Max Whiskers
+Boxplot with Min/Max Whiskers
------------------------------
-This example shows how to make a basic box plot using US Population data from 2000.
-Note that the default value of the `extent` property is 1.5, which can be used to
-produce in the standard modified boxplot.
+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
@@ -11,7 +12,7 @@ from vega_datasets import data
source = data.population.url
-alt.Chart(source).mark_boxplot().encode(
+alt.Chart(source).mark_boxplot(extent='min-max').encode(
x='age:O',
y='people:Q'
)
