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+%22%22%22%0AUS Income by State: Wrapped Facet%0A---------------------------------%0AThis example shows how to create a map of income in the US by state,%0Afaceted over income brackets %0A%22%22%22%0A# category: maps%0A%0Aimport altair as alt%0Afrom vega_datasets import data%0A%0Astates = alt.topo_feature(data.us_10m.url, 'states')%0Asource = data.income.url%0A%0Aalt.Chart(source).mark_geoshape().encode(%0A    shape='geo:G',%0A    color='pct:Q',%0A    tooltip=%5B'name:N', 'pct:Q'%5D,%0A    facet='group:N'%0A).transform_lookup(%0A    lookup='id',%0A    from_=alt.LookupData(data=states, key='id'),%0A    as_='geo'%0A).properties(%0A    width=300,%0A    height=175,%0A    columns=2%0A).project(%0A    type='albersUsa'%0A)

add geographical facet example