
:orphan:
:html_theme.sidebar_secondary.remove:

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

.. _gallery_histogram_heatmap:


2D Histogram Heatmap
--------------------
This example shows how to make a heatmap from binned quantitative data.


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


    import altair as alt
    from altair.datasets import data

    source = data.movies.url

    alt.Chart(source).mark_rect().encode(
        alt.X('IMDB Rating:Q', bin=alt.Bin(maxbins=60)),
        alt.Y('Rotten Tomatoes Rating:Q', bin=alt.Bin(maxbins=40)),
        alt.Color('count():Q', scale=alt.Scale(scheme='greenblue'))
    )


.. tab-set::

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

        .. code:: python


            import altair as alt
            from altair.datasets import data

            source = data.movies.url

            alt.Chart(source).mark_rect().encode(
                alt.X('IMDB Rating:Q').bin(maxbins=60),
                alt.Y('Rotten Tomatoes Rating:Q').bin(maxbins=40),
                alt.Color('count():Q').scale(scheme='greenblue')
            )


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

        .. code:: python


            import altair as alt
            from altair.datasets import data

            source = data.movies.url

            alt.Chart(source).mark_rect().encode(
                alt.X('IMDB Rating:Q', bin=alt.Bin(maxbins=60)),
                alt.Y('Rotten Tomatoes Rating:Q', bin=alt.Bin(maxbins=40)),
                alt.Color('count():Q', scale=alt.Scale(scheme='greenblue'))
            )
