分层堆叠条形图

使用大麦作物产量数据的水平堆叠条形图。 该图根据年份水平分面， 根据品种垂直分面。

Method syntax

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)

Attribute syntax

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.