简单条状图

一个关于如何创建条状图的简单示例。

方法语法

import altair as alt
from vega_datasets import data

source = data.cars()

alt.Chart(source).mark_tick().encode(
    x='Horsepower:Q',
    y='Cylinders:O'
)

属性语法

import altair as alt
from vega_datasets import data

source = data.cars()

alt.Chart(source).mark_tick().encode(
    x='Horsepower:Q',
    y='Cylinders:O'
)
# No channel encoding options are specified in this chart
# so the code is the same as for the method-based syntax.