(*) Hi everyone: I am not sure if my question is too basic, if it is could somebody recomend a text for solving it? I am trying to made a model for a...
... Part of the motivation for indicator kriging and simulation (at least in the oil and gas domain) is to move away from the normal kriging variance, which is...
Dear list members, I have started using geostats only this year and therefore I appologise that my questions are too basic for this discussion list... I am...
... the software Variowin use when adjusting a variogram model? Is it minimum weights mean squares errors technique? I don't have the guide of this software so...
Dear list For Matlab-users we have written a Matlab Kriging toolbox called DACE (Design and Analysis of Computer Experiments). The toolbox was developed for...
Dear collegues, I have another doubt.... When we have several possible models (with different covariates as an external trend), how doi we decide which one is...
Dear List, I want to krig a ore body that has been sampled twice. Samples taken during the second campaign are almost five times as big as that taken...
Hi I'm analysing fisheries data (number of fish caught per hour) and I have some 0 values. When I log-trans I have to translate the values by hading some...
Here is the feedback that I received on the grade tonnage curve topic. Less than I thought and there appear to be relatively few books (in print/ readily...
Dear list members Is there anyone who is using GS+? I have a question on it. Regards Ercan Yesilirmak __________________________________________________ Do you...
Dear list members Would you suggest any paper/book/thesis etc., especially in environmental sciences, where kriging is applied in one-dimension? Thanks in...
Dear Ai_GeoStatistians, Regarding my query on 'LogNormal Kriging', I got responses from four people. Scroll down to read them. [My questions are given with Dr....
Hi All A quick one: Grade tonnage curves. 1. Any good books/ articles that take you through the process (including potential pit falls, no puns intended!).? 2....
Dear all, Even after learning geostats for couple of years, I am not sure I got the concepts right. (My lame excuse, "Since I am a statistician, I have to...
Dear all, does anyone has a list of the papers that are going to be presented at the GeoEnv 2002 conference (november in Barcelona, Spain)? I couldn't even...
Hi. I am trying to download the Blossom MRPP software and I keep getting messages that the page cannot be found. I downloaded the software several years ago,...
Dear list Is it possible to simulate a spatial random field from a skewed (i.e. non-Gaussian) distribution with a known spatial covariance structure. If so how...
Overlay a grid on a 2D distribution of random variables Z(x,y) and assign all such variables to the nearest grid node. Then consider the distribution of...
Dear all, you may have noticed that the AI-GEOSTATS web site sometimes requires a userid & password. Of course, there should be no restrictions to access the...
Could you give some URL to find documentation about ways to perform a sort of clustering of my geogrpahical data? I have several points (X,Y coords)...
Thanks to you all. Many of you suggested me to have a look at Dr.Levine's CrimeStat ( http://www.icpsr.umich.edu/nacjd/crimestat.html ), wich seems to be the...
Dear list members Would you suggest and, if possible, send me paper(s) where geostatistical tools are applied in 1-dimension? Thanks in advance Ercan...
Dear Colleagues I was reading a paper where they used geostatistical tools (i.e., cokriging) to estimate channel flow area and hydraulic radius, water depth ...
The nugget effect can be related with: a) Short range variability. b) Measurement error. Some times when your data is spaced appear a nugget effect, it can be...
Hi, I am new to GSLIB so bear with me. Is there any utilities that will enable me to export the GSLIB *.out file to the GEO EAS format or any other remote ...
Dear all: You can download the electronic (free) book (in spanish) "Introducción al Muestreo Minero" by Marco Alfaro, preface by Pierre Gy & Dominique ...
Dear all, when trying to access www.ai-geostats.org, you may have noticed since Friday that a userid & password are required. This problem is due to a change...
Dear all: has anyone some suggestions for estimating the measurement error variance as a component of the nugget, based on replicates data ? Thank you for your...
Has anyone on this list used the software and/or databases described in the email messages listed below????? Thanks! Allan C. Harris - Environmental Engineer ...
Using PCRaster and GSTAT, I want to analyze variables in three dimensions but do not know how to proceed. Although the GSTAT manual explains how to create 3D...
