:orphan:
:html_theme.sidebar_secondary.remove:

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

.. _gallery_line_with_log_scale:


Line Chart with Logarithmic Scale
---------------------------------
How to make a line chart on a `Logarithmic scale <https://en.wikipedia.org/wiki/Logarithmic_scale>`_.


.. altair-plot::
    :remove-code:
    


    import altair as alt
    from vega_datasets import data

    source = data.population()

    alt.Chart(source).mark_line().encode(
        x='year:O',
        y=alt.Y(
            'sum(people)',
            scale=alt.Scale(type="log")  # Here the scale is applied
        )
    )

.. tab-set::

    .. tab-item:: Method syntax
        :sync: method

        .. code:: python


            import altair as alt
            from vega_datasets import data

            source = data.population()

            alt.Chart(source).mark_line().encode(
                x='year:O',
                y=alt.Y('sum(people)').scale(type="log")
            )


    .. tab-item:: Attribute syntax
        :sync: attribute

        .. code:: python


            import altair as alt
            from vega_datasets import data

            source = data.population()

            alt.Chart(source).mark_line().encode(
                x='year:O',
                y=alt.Y(
                    'sum(people)',
                    scale=alt.Scale(type="log")  # Here the scale is applied
                )
            )