What would a minimal example for a choropleth map in Mathematica look like?

Question

What would a minimal example for a choropleth map in Mathematica look like?

I can read in a ESRI Shapefile using Import, but do not know how to work with th

Answer 1

@Karsten W.: unfortunately your shp file is not longer available. I tried a similar one (vg250_0101.utm32s.shape.ebenen\vg250_ebenen\vg250_krs.shp) from the same source but I got the error message "Transpose: the first two levels can not be transposed" from your function KreisDataRules. And since I did not really understand what your code does, maybe you can help. I try to produce a thematic map on a Kreis level, where the colouring shows the number of tourists in our city, if necessary also 0. I would be very grateful for any help.