Stacked Bar Chart

This is an example of a stacked bar chart using data which contains crop yields over different regions and different years in the 1930s.

Method syntax

import altair as alt
from vega_datasets import data

source = data.barley()

alt.Chart(source).mark_bar().encode(
    x='variety',
    y='sum(yield)',
    color='site'
)

Attribute syntax

import altair as alt
from vega_datasets import data

source = data.barley()

alt.Chart(source).mark_bar().encode(
    x='variety',
    y='sum(yield)',
    color='site'
)
# No channel encoding options are specified in this chart
# so the code is the same as for the method-based syntax.