If you guys are that desperate I published a program
in Computers and Geosciences in 1977 (I think). The
reference will be in
It was called SNARK and was for 3-d data.
Trend Surface Analysis is basically just ordinary
least squares. Any stat package which does least
squares regression should do all the relevant tests as
The `theory' of PTSA and Analysis of Variance testing
is in Practical Geostatistics 2000, Chapter 7.
If you are willing (or allowed) to share your data
with the world, contact me and I'll turn it into a
valid file for the free 'book' software
+27 11 726 3729
Do You Yahoo!?
Get your free @... address at http://mail.yahoo.co.uk
or your free @... address at http://mail.yahoo.ie
*To post a message to the list, send it to ai-geostats@...
*As a general service to list users, please remember to post a summary
of any useful responses to your questions.
*To unsubscribe, send email to majordomo@...
with no subject and
"unsubscribe ai-geostats" in the message body.
DO NOT SEND Subscribe/Unsubscribe requests to the list!