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st: Randomize points to map polygons using -spmap- ?
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Subject
st: Randomize points to map polygons using -spmap- ?
Date
Mon, 15 Jul 2013 23:13:56 +0800
Dear Statalist,
Any thoughts on the possibility of randomizing in space a given number
of points to polygons (say, states, districts, etc) using Maurizio
Pisati's -spmap- (from SSC)?
******** Example starts here ********
* cd "User/Data/"
ssc install spmap
ssc install shp2dta
* open-source shapefile for Andorra(AND)
copy "http://gadm.org/data/shp/AND_adm.zip" AND_adm.zip, replace
unzipfile AND_adm.zip, replace
shp2dta using "AND_adm1", database(ADMdb) coordinates(ADMcoord)
genid(id) replace
use ADMdb, clear
gen cases = ceil(uniform() * 25)
desc
* use ADMcoord, clear
* desc
******** Example ends here ********
How to randomize 'cases' within 'NAME_1' and export the coordinates?
Thanks for taking a look-
cheers-
Andrew Lover
___________________________________________________________
Epidemiologist
Centre for Infectious Disease Epidemiology Research (CIDER)
Saw Swee Hock School of Public Health
National University of Singapore
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