dear list, I have a question on Variowin software. The 'Prevar2D' module (which is used to create the pair files) has an option to select maximum differences ...
HI all! Thanks for suggesting CRIMESTAT to calculate Moran I. It is a great software and the documentation is very good. I am working with fish in streams and...
Hello, I am trying to create a contiguity matrix using Matlab - I have x,y coords, and would like to create a (sparse) weights matrix of 0,1 for immediate ...
Hi there! I am grateful to those who have responded to the survey. I appreciate the interest, effort and patience of all the respondents. I also thank the...
Is anyone have codes (SAS, S-PLUS, other?)to estimate MORAN I. Would it be possible for you to provide me a copy of your codes. Thanks Lyse ... From:...
Dear list members, I have a problem concering a three dimensional data set of sediment cores. The cores have been sampled by dividing them into sections of...
Hi everbody My question is: Is there any criterion on the minimum sampling number to get a satisfactory semivariogram, assuming that samples are dimensionless...
Dear Geostats Members: I am a botanist at The New York Botanical Garden. My colleagues and I study plants, and many of us focus on tropical plant groups. We...
Dear list, Happy Christmas! Many thanks to all those who replied my question about extreme values, especially Isobel Clark, Marcel Vallée, Benjamin Warr,...
Dear all, 2001 was another good year for AI-GEOSTATS and the mails that have been exchanged still underline the strong interest of the researchers in the...
Dear list members, I get totally different distributions when I use a "Search" option in kriging compared to a "No-search" option. The data (90 points) I use...
Dear All, I am working on blasthole interpolation in open pit mine. Interpolation using ordinary kriging and grades interpolated also from above bench. ...
Dear all, My question is: How to deal with the extreme/outlying values in a data set? I am dealing with heavy metal concentrations in soils from a mine area....
Hi, I am a graduate student in City and Regional Planning Department at King Fahd University of Petroleum and Minerals. I am carrying out a web based survey...
Hi all, I'm preparing a course in Geostatistics for ESRI Germany and I never thought it was so difficult to find a simple dataset to demonstrate some typical...
Hi, we have multiyear point data (gridded) of a measured variable, Y, from farm fields and there are spatial patterns to Y. We want to measure the degree of...
Hello, This is to inform list-members about the forthcoming Geostats UK meeting to be held at the University of Reading (in the south of England) on March 25th...
Hello all, I'm a bit of a rookie with GeoStatistics. I am interested in Kriging with External Drift but I am having a hard time finding information that tells...
Hi list! I want to know if there any software that works with multinomial (discrete) spatial variable. Is it valid to work pairwaise with binomial variable and...
Hi, I have a question about interpretation and robustness of a variogram. My variogram rises then plateaus and then rises again. I interpret this as meaning...
Hi I would like to perform a factorial kriging analysis on a multivariate data set. Can somone direct me to a Freeware or shareware that performs that job. I...
SECOND ANNOUNCEMENT 3rd CONFERENCE OF THE INTERNATIONAL SOCIETY FOR ECOLOGICAL INFORMATICS (ISEI) Villa Grazioli Park Hotel, Grottaferrata (Rome), Italy, 26-30...
Dear all, What is the differences between the proportionality hypothesis and the null hypothesis? Can you show me an example? Thanks! Xiaohua Dai (Mr.) ...
Hi all I have listed all the replies and my original question below. Just to clarify my original question, I did not use any additive constant in this process....
Hello all, Yesterday morning I asked for pointers to software and algorithms, preferably MATLAB, that could simulate spatially- autocorrelated and/or fractal...
Hi all I have been experimenting with various kriging methods in estimating Witwatersrand gold grades (South Africa) using Datamine software. I found that...
Hello all, I'm looking for code (preferably MATLAB) or pseudocode to simulate a 2D spatially-autocorrelated grid with user-settable autocorrelation. I'd also...
Hi everybody, I appreciated extensive discussion on "Cracks in geostatistical foundations". Unfortunately, it seems like the joke saying "it two lawyers discus...
