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  • If you have region names but not latitude and longitude data in your table, you can still easily produce a circle-annotated map using the Geocoder algorithm, which will find the coordinate data for each region name and add it to the table.
  • There is no perfect map projection -- the choice depends on your application. We recommend:
    • Albers equal-area conic if preserving area is important.
    • Lambert conformal conic if preserving angles (or shapes) is important.
    • Mercator if presenting a familiar and fairly standardized projection is important.

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Russell Duhon's Python script paved the way for the GeoMaps algorithm.

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