Dear list members
Thanks to everybody (P. Kyriakidis, J. Senegas, D. Myers, W. Thayer) who
answered my question about generating
autocorrelated random fields....
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Munroe, Darla
dmunroe@...
Jun 11, 2002 8:11 am
Greetings! I'm trying to put together a discussion on the issue of identifying "appropriate" spatial weighting functions in an empirical setting. Can anyone...
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jack webster
webstrr@...
Jun 18, 2002 8:37 am
Hi all list member Suppose that our data have an anisotropy in which sill varying with direction. In this case, what can talk about stationary: - Are data...
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Chandra S
s.chandra@...
Jun 24, 2002 7:58 am
Dear Olaf - I wonder whether you got any response! Regards, Subhash ____________________________________________________________ Dr Subhash Chandra Senior...
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Anil Rupasingha
AnilR@...
Jun 26, 2002 8:09 am
I have a question on the estimates of an spatial error model (SEM). The parameters in the OLS with the presence of spatial dependence in the error term will...
656
Roger Bivand
Roger.Bivand@...
Jun 26, 2002 3:29 pm
... Certainly not numerically identical. The standard errors will be biased if the error autoregressive parameter is different from zero. The coefficients will...
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Cristian Guajardo
guajaman@...
Jun 27, 2002 8:25 am
I need information about the aplications of geostatistics in geological risk. I need to know If exist a link, book or paper about this. THANKS...
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Richard Satkin
Richard.Satkin@...
Jun 27, 2002 8:26 am
On 6/26/02 guajaman@... posted the following message: I need information about the aplications of geostatistics in geological risk. I need to know If...
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Olaf Jensen
opj1@...
Jun 28, 2002 8:29 am
Hi, I just wanted to share some of the responses to my question about substituting a user-defined distance matrix into a program for variogram calculation and...
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Carlo Cardellini
geochem@...
Jul 9, 2002 7:55 am
Hello, I have a question about the variogram model of normal scores to use as input in the sequential gaussian simulation: the sill must be 1? and if this is...
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Pierre Goovaerts
goovaert@...
Jul 9, 2002 7:55 am
Hi Carlo, Note that a sill strongly different from 1 would mean that the assumption of 2nd order stationarity underlying SGS is not met. I wouldn't force the...
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Branka Turcin
bturcin@...
Jul 9, 2002 7:55 am
Dear all, I am working on an autologistic spatial lattice model (binary response data, neighbor matrix, and one explanatory variable) and would need help in...
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Eva Pierce
logicgrrl
Jul 9, 2002 7:55 am
Hi. I want to use Ordinary Kriging on an arbitrary dataset of X,Y, and Z values to estimate the Z values on a grid of arbitrary size/density. But I don't know...
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Syed Abdul Rahman Shi...
syed@...
Jul 9, 2002 9:45 am
Variogram modeling is usually a pre-requisite for kriging and/or stochastic simulation. It's not usally something that you'd want to "automate"; in some sort of...
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Soeren Nymand Lophaven
snl@...
Jul 9, 2002 11:46 am
Dear Marta If you have access to matlab, try the movie-function. Best regards / Venlig hilsen Søren Lophaven ...
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Marta Rufino
mrufino@...
Jul 9, 2002 11:46 am
Hello, I would like to do some smooth animations between several (kriged) maps- like ones transforming in the others. Does anyone nows an easy software ...
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Isobel Clark
drisobelclark@...
Jul 9, 2002 11:46 am
Hi Eva You have your questions the wrong way round. Once you find the semi-variogram model for your particular application, the kriging system should povide...
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Nils Mevenkamp
nmev@...
Jul 9, 2002 1:06 pm
Hello Marta, in case you want to present your maps at the internet, save your maps as seperate gif-images (screenshots will do) and use GIF Contruction Set ...
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Ernesto Jardim
ernesto@...
Jul 9, 2002 2:54 pm
Hi You can try MuPAD (www.mupad.de) a freeware program (description below from MuPAD research group) that runs on M$Win. Beijos EJ --//-- MuPAD - The Open...
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Richard Satkin
Richard.Satkin@...
Jul 9, 2002 2:54 pm
Hello. I am using magnetic techniques to locate potential unexploded ordnance (UXO) and would like to apply IK to map the likelihood of UXO. Confirmed...
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Pierre Goovaerts
goovaert@...
Jul 9, 2002 3:57 pm
Hi Richard, Complete randomness is surely not desirable since then spatial interpolation would be quite simple.... You can check ...
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Marta Rufino
mrufino@...
Jul 12, 2002 9:41 am
Hello everybody, I think you received all the messages, but, just in case, hear the answers to my animation question. thank you all, Marta, ... Marta, això...
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Stephanie Grossman
stephgrossma...
Jul 15, 2002 8:37 am
hey folks, dunno if this is the right audience but, i've got some questions re fragstats 3.1: i'd like to run a contagion-esque metric on a single class in my...
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Santiago Saura Mart€ ...
ssauramt@...
Jul 30, 2002 9:31 am
Dear list members, I have calculated the shared edges existing between each of the cover types (nine in this particular case) of a vector map. My objective is...
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Roger Bivand
Roger.Bivand@...
Jul 30, 2002 9:31 am
... Maybe a join count test, perhaps using the shared boundary length in the weights matrix - Cliff, A. D., Ord, J. K. 1981 Spatial processes, Pion, p. 20....
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R. Jeffrey Davis
jeff@...
Aug 7, 2002 7:32 am
Friends of AI-GEOSTATS I had a simple question regarding ordinary kriging. When dealing with clustered data (either 2D or 3D) with various interpolation ...
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Dr. Ned Levine
ned@...
Aug 7, 2002 7:32 am
I would like to bring to the attention of the Ai-geostats community the availability of an improved version of the CrimeStat spatial statistics program. The...
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Isobel Clark
drisobelclark@...
Aug 7, 2002 7:32 am
Some would say that the whole advantage of kriging is in the fact that it handles clustered data automatically -- weighing each sample according to its ...
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Victoria Íñigo Men...
victoria.inigo@...
Aug 7, 2002 1:06 pm
Dear list members: I'm doing my PhD about forestry soils and I use Idrisi 3.2 for my geostatistical analysis with Gstat interface. I do Ordinary Kriging and ...
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Soeren Nymand Lophaven
snl@...
Aug 7, 2002 3:49 pm
Dear Victoria Firstly, from the output you have displayed it seems to me that you should take the natural logarithm of your observations before doing the...
