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

.. _gallery_bar_chart_with_highlighted_bar:


Bar Chart with Highlighted Bar
------------------------------
This example shows a basic bar chart with a single bar highlighted.


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

    
    import altair as alt
    from vega_datasets import data

    source = data.wheat()

    alt.Chart(source).mark_bar().encode(
        x='year:O',
        y="wheat:Q",
        # The highlight will be set on the result of a conditional statement
        color=alt.condition(
            alt.datum.year == 1810,  # If the year is 1810 this test returns True,
            alt.value('orange'),     # which sets the bar orange.
            alt.value('steelblue')   # And if it's not true it sets the bar steelblue.
        )
    ).properties(width=600)


.. toctree::
   :hidden: