Displaying 2 results from an estimated 2 matches for "daixiaohua".
2005 Jul 06
2
How to sample x-y coordinates from GIS files
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
2005 Jun 30
3
[OT] gmail filter for R-help and R-devel lists
This is slightly off-topic but I would be interested in whether anyone
has succeeded in creating a filter expression for Google's gmail
system that will select messages sent through the R-help and R-devel
lists. It seems as if it should be easy to select on '[R]' or '[Rd]'
in the subject line but I haven't been able to work out the exact
syntax that would do this and not