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"""
Grouped Bar Chart with xOffset
------------------------------
Like :ref:`gallery_grouped_bar_chart`, this example shows a grouped bar chart. Whereas :ref:`gallery_grouped_bar_chart` used the ``column`` encoding channel, this example uses the ``xOffset`` encoding channel. This is adapted from a corresponding Vega-Lite Example:
`Grouped Bar Chart <https://vega.github.io/vega-lite/examples/bar_grouped.html>`_.
"""
# category: bar charts
import altair as alt
import pandas as pd
source = pd.DataFrame({
"Category":list("AAABBBCCC"),
"Group":list("xyzxyzxyz"),
"Value":[0.1, 0.6, 0.9, 0.7, 0.2, 1.1, 0.6, 0.1, 0.2]
})
alt.Chart(source).mark_bar().encode(
x="Category:N",
y="Value:Q",
xOffset="Group:N",
color="Group:N"
)
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