[R] How to sample x-y coordinates from GIS files

[halldor bjornsson]

Check out the maptools package.
It allows you to read ESRI shapefiles.


On 7/6/05, Kum-Hoe Hwang <phdhwang at gmail.com> wrote:
> Hi Gurus!
>  I have a job that is to get randomly samples from point-based GIS data (sp
> called shape GIS files) under the total sum resctricted.
>  For example, I would like to take random smaples under the 1000 persons in
> each city.
> The randomly sampled persons should not be over 1000 any case.
>  Thank you in advance,
> 
> --
> Kum-Hoe Hwang, Ph.D.
> 
> Phone : 82-31-250-3283
> Email : phdhwang at gmail.com
> 
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