Pin Maps

[Santiago Cantillo]

Hi,
I'm trying to create a pin map in stata using spmap. I haven't found any clear instructions of how to create a map different from a clorpleth one.

I have a municipality shapefile of my country and the number of firms in each municipality. I want to make a pin map where the size of each pin reflects the number of firm in each municipality.

Any suggestions on how to start or where to find examples and/or more documentation would be great. If you also have any ideas of a different kind of map (different from a cloropleth one) that I can make to represent this data I would appreciate that very much.

Thanks in advance!
Santiago

[wbuchanan]

Santiago,

the best advice I can think of is to use the centroids of the polygons to identify the lat/lon coordinate pair and set the size of the points using aweights in the same way that you would create a bubble plot. I’ve not tried this with any of the spatial commands in Stata, but know it is possible to do this with GIS software like QGIS.