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

From: Kum-Hoe Hwang <phdhwang_at_gmail.com>
Date: Wed 06 Jul 2005 - 22:14:08 EST

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@gmail.com

	[[alternative HTML version deleted]]

R-help@stat.math.ethz.ch mailing list
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Received on Wed Jul 06 22:18:17 2005

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:33:16 EST