分面堆叠条形图#
一个使用大麦作物产量数据的水平堆叠条形图。该图表按年份水平分面,按品种垂直分面。
import altair as alt
from vega_datasets import data
source = data.barley()
alt.Chart(source).mark_bar().encode(
column="year:O",
x="yield",
y="variety",
color="site",
).properties(width=220)
import altair as alt
from vega_datasets import data
source = data.barley()
alt.Chart(source).mark_bar().encode(
column="year:O",
x="yield",
y="variety",
color="site",
).properties(width=220)
# No channel encoding options are specified in this chart
# so the code is the same as for the method-based syntax.