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

.. _gallery_step_chart:


Step Chart
----------
This example shows Google's stock price over time.
This uses the "step-after" interpolation scheme.
The full list of interpolation options includes 'linear',
'linear-closed', 'step', 'step-before', 'step-after', 'basis',
'basis-open', 'basis-closed', 'cardinal', 'cardinal-open',
'cardinal-closed', 'bundle', and 'monotone'.


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

    
    import altair as alt
    from vega_datasets import data

    source = data.stocks()

    alt.Chart(source).mark_line(interpolate='step-after').encode(
        x='date',
        y='price'
    ).transform_filter(
        alt.datum.symbol == 'GOOG'
    )


.. toctree::
   :hidden: