.. This document is auto-generated by the altair-gallery extension. Do not modify directly.

.. _gallery_trellis_area:


Trellis Area Chart
------------------
This example shows small multiples of an area chart.


.. altair-plot::
    :code-below:

    
    import altair as alt
    from vega_datasets import data

    source = data.iowa_electricity()

    alt.Chart(source).mark_area().encode(
        x="year:T",
        y="net_generation:Q",
        color="source:N",
        row="source:N"
    ).properties(
        height=100
    )


.. toctree::
   :hidden: