hi i am facing problem to draw variogram for the limestone deposit. i have very positively skewed data set. earlier i had send one mail regarding this issue....
1592
Adrian MartÃnez V...
amvargas@...
Jun 8, 2004 7:41 am
Hello list I have 3 questions about ArcView 3.X a) How to limit no null data of a grid inside a poligon shape. b) How to limit triangles with a...
1593
Monica Palaseanu-Love...
monica.palaseanu-love...
Jun 8, 2004 3:38 pm
Hi, I don't know anything about surfer, but if you have an xyz table out of that file - you can convert it either in dbf or txt and ArcView will import it with...
1594
Johan Reyns
Johan.Reyns@...
Jun 8, 2004 3:38 pm
Hi Adrian, The following will probably solve your third problem: Download the free Surfer Extension from this site HYPERLINK ...
1595
rocchini@...
Jun 8, 2004 3:38 pm
Hi, as stated by Monica, you can do this: "Other way to do it is to convert the grid into a shape file (usually you loose some detail like that), after you can...
1596
Pierre Goovaerts
goovaert@...
Jun 10, 2004 6:30 pm
Hi Marc, You may want to look at the following paper: de Gruijter, J.J., Walvoort, D.J.J., van Gaans, P.F.M., 1997. Continuous soil maps --- a fuzzy set...
1597
Isobel Clark
drisobelclark@...
Jun 10, 2004 6:30 pm
Marc-Olivier The simplest solution - in the sense that most packages could handle it - is to carry out a 'nested' indicator analysis. That is: (i) code one of...
1598
Marc-Olivier Gasser
marc-olivier.gasser@...
Jun 10, 2004 6:31 pm
Hi everyone, Lets say we have measured three soil particule size values for clay, silt and sand, all adding to one. cl + s i + sa = 1 What would be the best...
1599
Dr Inakwu Odeh
i.odeh@...
Jun 11, 2004 7:06 am
Marc-Olivier, You can try our recent publication in the Journal "Soil Science" which compared several geostatistical techniques for simultaneously...
1600
snehamoy chatterjee
snehamoyc
Jun 16, 2004 1:04 pm
hi i have used the sequencial simulation in GSLIB software. i have got the output from that option. but how i know that the result is ok or not? i have used 3...
1601
Julián Ortiz
jmo1@...
Jun 17, 2004 7:27 am
Hello, There are many things one should check when doing geostatistical simulation. You should as a minimum check the following: 1. First check it visually...
1602
Adrian MartÃnez V...
amvargas@...
Jun 21, 2004 7:12 am
I have get the solution exporting the Surfer grid to ASCII x, y, z file. I have eliminate de blanked nodes, and I have: a) add as table in arcview b)...
1603
Norrie, Gordon
gordon.norrie@...
Jun 22, 2004 1:33 pm
Dear all, I've got a set of points at unknown elevation heights within a DEM. These points fall within a dense 5m resolution DEM, with an elevation point at...
1604
Monica Palaseanu-Love...
monica.palaseanu-love...
Jun 23, 2004 7:45 am
Hi, I know how to do that in ArcView or ArcGIS if you have the Spatial Analyst extension. You can load directly (if i remember correctly) the DEM file and you...
1605
Adrian MartÃnez V...
amvargas@...
Jun 25, 2004 9:21 am
I’m agree with Monica, but if you need a sophisticated analysis or estimation is preferable to use GSLIB, or ISATIS or a lest geostatisticaly sophisticated...
1606
Rizwan Shahid
rizwan_shahid2
Jun 28, 2004 8:27 am
Hi all, I am working on my Master's thesis, the major part of which is consists of GWR (Geographically Weighted Regression). I wonder if someone is working or...
1607
Nick Hamm
n.hamm@...
Jun 28, 2004 8:27 am
Hi folks Does anybody know of any packages available for computing Thiessen polygons or Delaunay Triangulation in R? Nick * By using the ai-geostats mailing...
1608
Roger Bivand
Roger.Bivand@...
Jun 28, 2004 8:27 am
... Packages tripack and deldir on CRAN ... -- Roger Bivand Economic Geography Section, Department of Economics, Norwegian School of Economics and Business...
1609
Koen Hufkens
koen.hufkens@...
Jun 28, 2004 8:27 am
Tada, http://www.maths.lth.se/help/R/.R/library/tripack/html/tri.mesh.html http://www.maths.lth.se/help/R/.R/library/deldir/html/deldir.html Cheers, Koen ... *...
1610
Afshartous, David
afshar@...
Jun 28, 2004 8:29 am
Nick, I had once asked the ArcView folks about this, and their response is below, cheers, dave It sounds like you are trying to create Thiessen polygons. If...
1611
Nick Hamm
n.hamm@...
Jun 28, 2004 8:29 am
Check out this website, under the heading spgwr http://agec221.agecon.uiuc.edu/csiss/Rgeo/ cheers Nick ... * By using the ai-geostats mailing list you agree to...
1612
lars.olsson@...
Jul 1, 2004 7:08 am
I have strength data from a circular column of soil which has been treated by mixing in lime using a rotary tool. Is there any way in which I can work in polar...
1613
M.J. Abedini
abedini@...
Jul 1, 2004 2:31 pm
Dear Colleagues Collection of digital elevation data in dam reservoir bathemetry is rich (i.e., 1 m) along the transect while it will be poor (in terms of...
1614
bob sandefur
rsandefur@...
Jul 1, 2004 2:31 pm
Hi- I was going to do a cokriging cross validation using gslib77 and can download the source from at least two places. http://www.gslib.com/main_gd.html or ...
1615
bob sandefur
rsandefur@...
Jul 2, 2004 7:27 am
List: In COKB3D in GSLIB there is a line specifying the max search radii for the secondary variable(s) in cokriging. In both the Stanford and www;gslib.com ...
1616
Feng Liu
asherliu@...
Jul 7, 2004 3:27 pm
Hi, Dear List: I am trying to use Gstat to do Gaussian Conditional Simulation on my soil C content data. I got 3 questions as following: 1. If I use "set...
1617
Ernesto Jardim
ernesto@...
Jul 8, 2004 7:36 am
Hi, Why don't you use gstat within R ? At least the 2 last questions will be solved. Regards EJ ... * By using the ai-geostats mailing list you agree to follow...
1618
Shazly, Salah DSC92
Salah.Shazly@...
Jul 8, 2004 7:45 am
Dear All, Are there any rules help building stable variograms, like number of lags, range ..etc? And what is the minimum number of control points needed to ...
1619
Isobel Clark
drisobelclark@...
Jul 16, 2004 8:14 am
Salah If your data is irregularly spaced, then you need to experiment with 'lag' intervals to balance between (a) getting enough points to see the shape of the...
1620
Ernesto Jardim
ernesto@...
Jul 16, 2004 8:15 am
... Hi, Building a "stable" variogram is like magic ! You have to be a sorcerer, a good one, to deal with everything that matters and make it through the "evil...
