多系列折线图

此示例展示了如何制作具有多个数据系列的折线图。

方法语法

import altair as alt
from vega_datasets import data

source = data.stocks()

alt.Chart(source).mark_line().encode(
    x='date:T',
    y='price:Q',
    color='symbol:N',
)

属性语法

import altair as alt
from vega_datasets import data

source = data.stocks()

alt.Chart(source).mark_line().encode(
    x='date:T',
    y='price:Q',
    color='symbol:N',
)
# No channel encoding options are specified in this chart
# so the code is the same as for the method-based syntax.