similar to: help with NSST models in GaussRf

Displaying 20 results from an estimated 300 matches similar to: "help with NSST models in GaussRf"

2007 Mar 06
0
help using non-separable space time covariance model
Hi R-Users, I am looking for an example of how to fit a nsst covariance model. Any help/example/ suggestions are very welcome Thanks Ele ---------------------------------------------------------- Eleonora Demaria http://www.u.arizona.edu/~edemaria/ ____________________________________________________________________________________ Want to start your own business?
2004 Dec 28
1
RandomFields: Controling seed with GaussRF
Hi, I'm using RF to simulate a correlated variable with GaussRF set.seed=1 GaussRF(sim.kfinegrid, grid=F, model="exponential", param=c(0,0.5,0,0.2)) However when I simulate again using the same random seed I get different results. > set.seed=1 > summary(GaussRF(sim.kfinegrid, grid=F, model="exponential", param=c(0,0.5,0,0.2))) Min. 1st Qu. Median Mean 3rd
2007 May 21
1
size limit in R?
Hi, Please see the email exchanges below. I am having trouble generating output that is large enough for our needs, specifically when using the GaussRF function. However, when I wrote Dr. Schlather (the author of the GaussRF function), he indicated that there is also a limit imposed by R itself. Is this something that we can overcome? Thank you very much for any assistance you may provde.
2013 Oct 18
0
[Bug 1346] PAM environment takes precedence over SendEnv
https://bugzilla.mindrot.org/show_bug.cgi?id=1346 Alessandro <alessandro.demaria at deepmind.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |alessandro.demaria at deepmind | |.com --- Comment #39
2011 Apr 11
1
Comparing execution times
Dear all, In my 'simple' computer I was running some experiments to help me understand how faster a multicore lapply will be. I thought it might be interesting for some people to look at the results. Even though are not accurate, still might be a good indicator how much improvement there can be. A.Case. The classic: for 1:100 for (i in c(1:dimz)){ print(sprintf('Creating the %d
2004 Apr 02
1
Firefly Client can't receive incoming calls
I'm having a problem configuring asterisk to send incoming calls to Firefly. I can make outgoing calls from firefly through asterisk without any problems at all. The firefly client does this when it's on the same IP subnet without a firewall, or from a NAT'd environment. Can anyone tell me where I'm going wrong? Here is output from iax2 show peers: Name/Username Host
2013 Nov 12
1
using scan function
Hi, You may try: op <- options(digits=12) r1 <- 4; c1 <- 4 ?A <- matrix(scan("file1.txt",n=r1*c1),r1,c1,byrow=TRUE) options(op) #reset A.K. Dear all, I?m using 'scan' function to import data into a matrix from a .txt file. The data are numbers with 12 significant digits (e.g. 471773.309872). ? When I give the command: A <- matrix(scan(file_name,
2005 May 19
0
Random/systematic selection of rows in a matrix
Hi R people: I am new to R. I am writing a function to (1) produce a sparse stochastic Gaussian 2D field and (2) perform a systematic transect sampling on this field, this carried out many times in a simulation framework. My function does a good job at producing the random field (a matrix of zeros and some manifestations of the stochastic process, depending on a parameter of the function
2010 Sep 06
0
How R converts data between objects
Hello everyone. I would kindly request your help concerning how R converts data between different structrures. In the following example please keep attention on the following two 1) I create f <- GaussRF(x=x, y=y, model=model, grid=TRUE,param=c(mean, variance, nugget, scale, alpha)) with image(x,y,f) and image(f) I get exactly the same image. then 2)I try to store f inside a raster
2012 Nov 12
1
How to generate a random field with truncated marginal distributions?
I have asked the same question on stackoverflow but did not get a satisfying answer. I am trying to simulate a lognormal spatial random field but I need the simulated value in a certain range. So I need some easy to use functions to generate a truncated Gaussian field to start with. To be specific, I need a function like GaussRF from the RandomFields package or grf from the geoR package to
2011 Apr 09
1
For->lapply->parallel apply
Dear all, I would like to ask your help understand the subsequent steps for making my program faster. The following code: Gauslist<-array(data=NA,dim=c(dimx,dimy,dimz)) for (i in c(1:dimz)){ print(sprintf('Creating the %d map',i)); Gauslist[,,i]<-f <- GaussRF(x=x, y=y, model=model, grid=TRUE,param=c(mean,variance,nugget,scale,Whit.alpha)) } creates 100 GaussMaps (each
2011 Apr 11
1
Mclapply and print statement
Dear all. I am using the mclapply function to split my code to the many cores my system has. It seems that is working fine. This is the parallel version of lcapply. The only problem that I seem to have is that the printf cannot print messages. The ideal to me is to have fro my function an output of the form Shadowlist<-mclapply(1:dimz, function(i) { print(sprintf('Creating the
2004 May 11
1
bad interaction between RandomFields 1.1.11 and Sweave
Not really a bug (I eventually discovered), but ... When running GaussRF()/DoSimulateRF() with n>1, the default pch="!" prints backspaces to the terminal, which causes problems (LaTeX barfs) if you're running this within an Sweave() job. Setting RFparameters(pch="") fixes the problem. Could put this in the documentation, but I don't know where you could
2010 Sep 01
1
Looks like a bug in subsetting of a complicated object
I don't understand what is happening! I have a (large) object sim1, an matrix list with dim c(101,101) where each element is an 3*3 matrix. I am subsetting that with a matrix coo, of dim c(100,2), of unique indices, but the resulting object has length 99, not 100 as expected. Code reproducing the problem follows: library(RandomFields) set.seed(123) sim0 <- GaussRF(x=seq(0, 100, by=1),
2012 Feb 10
0
range and anisotropy with RandomFields
Hello, I am presently trying to get a feel for the various packages out there that allow me to both analyze and simulate random fields. The package RandomFields is nice, but there are still a few aspects of its implementation that are confusing to me and I was hoping someone could help clarify things for me. It could also be that my questions reflect a lack of knowledge pertaining to random
2010 Aug 19
0
2d kriging with anisotropy on an irregular network (RandomFields Package)
Dear List I am using the RandomFields package, and I have a problem when 2d-kriging, with an anisotropy, some values from an irregular network. It works well when : - 2d-kriging, without any anisotropy, some data from an irregular network - 2d-kriging, with and without anisotropy, some data from a regular network - 3d-kriging, with and without anisotropy, some data from a regular network Here is
2010 Mar 14
3
the error in DoSimulateRF function
Hello, I am a graduate student of University of Florida. I am trying to run a process variation model and I am facing the following error. ------------------------------------------------------------- Analysis of geostatistical data For an Introduction to geoR go to http://www.leg.ufpr.br/geoR geoR version 1.6-27 (built on 2009-10-15) is now loaded
2008 May 28
2
Regression From Platinum: Red Alert Yuri's Revenge
When running ra2md.exe the game starts, the menu works flawlessly, and everything is honky dory... But when trying to start, for instance, a skirmish game, it goes through the setup(choose name, playing field, country, etc), go to the loading screen, and then once it is finished loading the data it crashes(right when entering the actual game. # on startup fixme:keyboard:RegisterHotKey
2013 Jan 28
2
centering matrix
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2006 May 27
5
Rails without cookies
Why does rails keep installing cookies on users machines, even if I am not ussing th session variable for anything? How do I stop this? Thanks, Scott -- Easily help charity when you shop: www.GiveTeam.org I''m a member of the Give Team, are you?