Displaying 20 results from an estimated 800 matches similar to: "(no subject)"
2003 Jul 24
1
geoR size limit problem
Hi all,
I tried to produce some kriged surfaces with geoR (latest version). The size
of the grid should be around 900 x 650 cells (what I find is not a very big
grid), and the number of points is around 2500. The command krige.conv
stopped after arround 5 min saying it can not allocate a vector with around
1.5 billion units. Sounds reasonable.
Is there a workaround? How would I partition the
2013 Mar 19
1
Cokriging
Dear All,
I run following code to estimate the blocks using cokriging ( my data set has more than 50,000 data points). All the things run finely but Once I run the predict.gstat function it gave the error message - "memory.c", line 58: can't allocate memory in function m_get(). I run this code on LINUX sever but result is same. Would any one please be able to give a solution for
2013 Oct 10
1
installing package gstat
Hello,
# I am able to
install.packages("gstat")
#but when I try to upload I get an error message
library(gstat)
#Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck
= vI[[j]]) :
# there is no package called ‘intervals’
#In addition: Warning message:
#package ‘gstat’ was built under R version 3.0.2
#Error: package or namespace load failed for ‘gstat’
what do
2006 Jun 03
1
default value for cutoff in gstat variogram()
I wonder what is the default value for the argument 'cutoff' when not
specified in the variogram.formula function of gstat. Computing
variogram envelops within gstat, I am comparing the results obtained
with variog in geoR and variogram in gstat, and it took me a while
before understanding that the cutoff default value is not the maximum
distance.
Can Edzer tell us about it?
All the
2012 Dec 17
1
How to make Ordinary Kriging using gstat predict?
Hi,
I am new in R and trying to implement an algorithm which makes ordinary kriging by using gstat library and the predict method.
I use the predict method as following:
First, I create an object g:
g <- gstat(id="tec", formula=TEC ~ 1, data=data) ## Create gstat object called g
And then I use this object in the predict.
p <- predict.gstat(g, model=mod, newdata=predGrid,
2005 Oct 24
2
Compilation package error
Dear all,
I tried to install gstat package and add the following compilation error :
------------------------>
* Installing *source* package 'gstat' ...
creating cache ./config.cache
checking for gcc... gcc
checking whether the C compiler (gcc ) works... yes
checking whether the C compiler (gcc ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether
2003 Aug 28
1
Packages
I need to install some geostatistics packages that are not in the binaries,
for example gstat. I downloaded rm171 and installed, and I even added
precomplied packages successfully. Unfortunately, I do not know how to add
packages available as gstat. If you can spare a minute, could you give me a
lead on this?
Any other pointers on using R in mac os x will be greatly appreciated.
Thank you so much
2007 Oct 05
1
using spplot (sp package) with 5 quantiles
Hi,
I'm using R 2.5.1 and gstat 0.9-39 library and I'm working with the
jura data set provided by gstat library.
I tried to plot a graph of metal concentrations (let's say Cd) with
the command spplot, but I realized that the default lags are equally
distributed between Min and Max. I did:
library(gstat)
data(jura)
jura.pred.xy <- jura.pred
names(jura.pred.xy)[1:2] <-
2011 Jan 23
1
Gstat error message.
Hi,
I am a student at the University of Twente ( ITC).
I am using the R packages for my data analysis, but for the last few weeks now , I have been getting the error message when trying to work on variograms or krigging.
Error : .onLoad failed in loadNamespace() for 'gstat', details:
call: fun(...)
error: .Random.seed is not an integer vector but of type 'list'
Error:
2003 Oct 02
1
Are package maintainers responsible for name-mangling class names?
The following came up when Roger Bivand and I discussed
R's name spaces and overlap in packages, in the bus to the
field trip during StatGIS, last Tuesday:
If two packages create the same class, say "variogram", and both
are loaded, then using a method for an object of class "variogram"
cannot discriminate between them and will call the method in the
package loaded last.
2010 Nov 17
1
Please, help me with 'mattern' variogram
Hi, R-folks:
I have been tryin many combination of parameter to make Matern variogram to work, but I can't find the available one. I'm near to be crazy.
I tiped:
A?o2003Selg.lf<-likfit(A?o2003Selg,cov.model="matern",ini.cov.pars=c(1.5,14),kappa=2.5,fix.kappa=FALSE,nugget=0.08,lambda=0.008,fix.lambda=FALSE,hessian=TRUE)
the hessian shows:
$hessian
[,1]
2004 Jul 28
1
package.contents() deprecated, what replaces it?
Back on 18-June a colleague (Earl Glynn) asked:
==================
I did a
?package.contents
in version 1.9.0. The help file says this is deprecated, and says to
"see also" Deprecated and Defunct, but what is the "new" function that
replaces packge.contents?
The function still seems to work, but it's just tagged as deprecated.
efg
==================
I have the
2003 Mar 07
1
REML option in gstat
Hi, please help!!
I've been trying to fit variogram models using the REML method in the gstat
package. Every time the Windows GUI crashes. For example
library(gstat)
data(meuse)
x <- variogram(zinc ~ 1, ~x + y, meuse)
v <- vgm(140000, "Sph", 800, nug = 10000)
plot(x, model = fit.variogram(x, model = v, fit.method=5))
Other fit methods are non problematic (eg. fit.method=7
2009 Aug 16
1
How to use your own data in gstat and sp?
This seems pretty basic, but I can't get any data to work except for the
documented examples. When the goal is to get to SpatialPixels, here is what
I see...
> x <- runif(10,1,10)
> y <- runif(10,1,10)
> z <- rnorm(10,0,1)
> MyData <- as.data.frame(cbind(x,y,z))
> library(gstat)
> coordinates(MyData) <- ~x + y
> gridded(MyData) <- TRUE
suggested
2009 Mar 21
1
oggetto gstat
Ciao a tutti ho appena iniziato ad utilizzare R per ora per attuare un'analisi
geostatistica di dati. Volevo sapere come poter creare un oggetto gstat
partendo da un file testo(che ho gia importato con read.table)e che contiene 3
colonne: x,y,value. Mi servirebbe far questo per costruire un variogramma. So
che la domanda molto probabilmente per voi sara' banale....vi ringrazio
2005 Nov 09
2
Variograms and large distances
Hello R list,
I need to compute empirical variograms using data from a large
geographic area (~10^6 km2). Although I could not find a specific
reference, I assume that both geoR and gstat calculate distances among
data points assuming points are on a flat surface (using the Pythagorean
Theorem). Because the location of my data is large and located near the
pole, assuming that latitude and
2004 Nov 06
3
Installing Packages on an Athlon 64 Linux System
I installed FC 2 X86-64 on an Athlon 64 system. I then installed R
2.0.0. It runs fine except when I try to install or update packages
using either "install.packages" or "update.packages". I get the
following types of errors:
gcc -I/usr/lib/R/include -I/usr/local/include -D__NO_MATH_INLINES
-mieee-fp -fPIC -O2 -g -pipe -march=i386 -mcpu=i686 -c block.c -o block.o
cc1:
2007 Apr 08
1
How do I back transforme ordinary log-krigged prdiction values?
I have a question to everybody.
After log10 transfprmation, I have done ordinary kriging in gstat in R? I
need to back trnasform the prediction values to orgiginal scale. How do I
do this in gstat in R?
Thanks
Zia
--
Zia Uddin Ahmed
915 Brad Field Hall
Department of Crop and Soil
Cornell University
Ithaca NY 14850
USA
2005 Jun 10
1
In connection with the creation of a grid of point with gstat
Hi ALL,
With the pakage gstat
How can one create a grid of points as in the meuse.grid example, from
measuring sites as in the Meuse example
Thanks in advance!
Alain PONSERO
Conservateur
Réserve Naturelle de la Baie de Saint-Brieuc
site de l'Etoile
22120 HILLION
tel/fax : 02.96.32.31.40
<mailto:aponsero@cabri22.com> aponsero@cabri22.com
2015 Aug 06
2
Duda interpolación (package ' gstat ')
Sale plano sí.
Ya se que sin tener los datos y el código es un poco difícil, pero es que mis datos ocupan mucho, es imposible.
Seguiré mirando por internet.
Muchas gracias Rubén.
Un saludo,
> To: r-help-es en r-project.org
> From: rubenfcasal en gmail.com
> Date: Thu, 6 Aug 2015 14:21:47 +0200
> Subject: Re: [R-es] Duda interpolación (package ' gstat ')
>
> Hola