Thanks to Kit Baum, a data file for US county geocode coordinates is
available on the SSC achieve. This data file corresponds to the new file
lay out for versions 2.0 of Maurizio Pisati's excellent -tmap- program.
There are two zip files containing the county data file, an example do-file,
and example data set. The combined county geocode data file is about 34 MB
and consists of 915,000 data points.
In version 1.2 of tmap (Stata Journal 4.4) there was a limitation of 1950
polygons. This no longer seems to be a constraint.
It takes (on my machine) about 270 seconds to map out the county level data
for the 48 contiguous states.
-ssc desc usmaps2- for a description and use -net get usmaps2-. Since these
are ancillary files ssc install will not work.
If there are any problems please let me know.
Scott
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
