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

.. _gallery_beckers_barley_wrapped_facet:


Becker's Barley Trellis Plot (wrapped facet)
--------------------------------------------
The example demonstrates the trellis charts created by Richard Becker, William Cleveland and others in the 1990s. 
This is the Altair replicate of `the VegaLite version <https://vega.github.io/vega-lite/docs/facet.html#facet-full>`_ 
demonstrating the usage of `columns` argument to create wrapped facet.


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

    
    import altair as alt
    from vega_datasets import data

    source = data.barley.url

    alt.Chart(source).mark_point().encode(
        alt.X('median(yield):Q', scale=alt.Scale(zero=False)),
        y='variety:O',
        color='year:N',
        facet=alt.Facet('site:O', columns=2),
    ).properties(
        width=200,
        height=100,
    )


.. toctree::
   :hidden: