在 Altair 图表中隐藏分面标题？

Question

给定一个简单的多面图表，例如：

import altair as alt

data = alt.Data(values = [
    { "category" : "a", "x" : 1, "y" : 2 },
    { "category" : "a", "x" : 2, "y" : 4 },
    { "category" : "b", "x" : 1, "y" : 3 },
    { "category" : "b", "x" : 2, "y" : 5 }
])

alt.Chart(data).mark_point().encode(x = "x:Q", y = "y:Q").facet(
    row = "category:O"
)

如何沿 y 轴隐藏 top-level "category" 标题（同时保留 "a" 和 "b" 标签）？

Answer 1

可以设置编码的title 属性为None:

alt.Chart(data).mark_point().encode(x = "x:Q", y = "y:Q").facet(
    row = alt.Row("category:O", title=None)
)

在 Altair 图表中隐藏分面标题？

Hide facet title in Altair chart?

python

altair