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

.. _gallery_boxplot_max_min:


Box Plot with Min/Max Whiskers
------------------------------
This example shows how to make a basic box plot using US Population
data from 2000.

https://vega.github.io/vega-lite/examples/box-plot_minmax_2D_vertical_normalized.html


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

    
    import altair as alt
    from vega_datasets import data

    population = data.population.url

    # Define aggregate fields
    lower_box = 'q1(people):Q'
    lower_whisker = 'min(people):Q'
    upper_box = 'q3(people):Q'
    upper_whisker = 'max(people):Q'

    # Compose each layer individually
    lower_plot = alt.Chart(population).mark_rule().encode(
        y=alt.Y(lower_whisker, axis=alt.Axis(title="population")),
        y2=lower_box,
        x='age:O'
    )

    middle_plot = alt.Chart(population).mark_bar(size=5.0).encode(
        y=lower_box,
        y2=upper_box,
        x='age:O'
    )

    upper_plot = alt.Chart(population).mark_rule().encode(
        y=upper_whisker,
        y2=upper_box,
        x='age:O'
    )

    middle_tick = alt.Chart(population).mark_tick(
        color='white',
        size=5.0
    ).encode(
        y='median(people):Q',
        x='age:O',
    )

    lower_plot + middle_plot + upper_plot + middle_tick


.. toctree::
   :hidden: