new_contents: """
  Repeated Choropleth Map
  =======================
  Three choropleths representing disjoint data from the same table.
  """
  # category: geographic
  
  import altair as alt
  from vega_datasets import data
  
  pop_eng_hur = alt.UrlData(data.population_engineers_hurricanes.url)
  
  states = alt.UrlData(data.us_10m.url,
                       format=alt.TopoDataFormat(type='topojson',
                                                 feature='states'))
  
  variable_list = ['population','engineers','hurricanes']
  
  chart = alt.Chart(states).mark_geoshape().properties(
      projection={'type': 'albersUsa'},
      width=500,
      height=300
  ).transform_lookup(lookup='id', 
                     from_=alt.LookupData(pop_eng_hur, 'id', variable_list)
  ).encode(
      color=alt.Color(alt.repeat('row'), type='quantitative')
  ).repeat(
      row = variable_list
  ).resolve_scale(color='independent')
  
subject: Add repeated choropleth example