Displaying 20 results from an estimated 1000 matches similar to: "installing package gstat"
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,
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 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 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
2011 Oct 01
1
Gstat - Installation Fail _ download source and compile help ...
Hello
I have been trying to install gstat on university's unix based system ( i am
not familiar with many technical aspects of installation) but i am getting a
particular error which i could not find a solution to online. Here is what
the technical support guy mailed me back, i am sure someone who understands
the technicalities can explain me this procedure in a more lucid way.
*
**Technical
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
2004 Feb 17
4
importing ascii grids (for gstat)
Hello,
Is there anyone who could give me an example of how to import an ascii grid (i.e. ArcGIS exported raster) into R. I want to use it with gstat but don't know the appropriate import routine.
Thanks very much for your help.
Regards,
femke
Femke Reitsma
Graduate Student (ABD)
Geography Department
2181 LeFrak Hall
University of Maryland
College Park, MD 20742
Phone: 301-405-4121
2009 Sep 08
1
gstat---2 basic plot questions
Hi all--
I'm new to R, statistics and programming, so sorry if this is a really basic
question!
I have plotted a directional variogram, and I want to
a. overlay the omni-directional line over each directional panel
b. display the directional variograms in a single panel with a legend that
associated each line to each degree measurement.
The line I'm using is
2016 Sep 05
2
LLVM 3.8.0 - Adding new instruction to a basic block
Why not just use Instruction::insertAfter()?
I->insertAfter(new_inst);
On Mon, Sep 5, 2016 at 8:13 AM, Ryan Taylor via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Try incrementing the iterator before using.
>
> On Sep 5, 2016 10:26, "Simona Simona via llvm-dev" <
> llvm-dev at lists.llvm.org> wrote:
>
>> On Mon, Sep 5, 2016 at 3:20 AM, Daniel
2007 Jan 05
1
gstat package. "singular" attibute
Hello,
I'm using the gstat package within R for an automated procedure that
uses ordinary kriging.
I can see that there is a logical ("singular") atrtibute of some
adjusted model semivariograms:
.- attr(*, "singular")= logi TRUE
I cannot find documentation about the exact meaning and the implications
of this attribute, and I dont know anything about the inner calculations
2015 Aug 04
2
Duda interpolación (package ' gstat ')
Hola,
# Hacemos el KED. Ver función "krige()":
KED.rad <- krige(
formula=pluvPcp~layer, # covariable -> radar
locations=lluvia.rad.pluv.spdf,
newdata=radarGrid, # podría ser cualquier objeto Spatial
model=v.fit, # modelo de semivariograma.
maxdist=Inf
2016 Sep 05
2
LLVM 3.8.0 - Adding new instruction to a basic block
On Mon, Sep 5, 2016 at 3:20 AM, Daniel Berlin <dberlin at dberlin.org> wrote:
>
>
> On Sun, Sep 4, 2016 at 1:06 PM, Simona Simona via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Hello,
>>
>> I'm trying to add a new instruction after a given instruction in a basic
>> block.
>> Until LLVM 3.7, I was using the following code:
2009 Nov 25
1
R: Re: R: Re: chol( neg.def.matrix ) WAS: Re: Choleski and Choleski with pivoting of matrix fails
Dear Peter,
thank you very much for your answer.
My problem is that I need to calculate the following quantity:
solve(chol(A)%*%Y)
Y is a 3*3 diagonal matrix and A is a 3*3 matrix. Unfortunately one
eigenvalue of A is negative. I can anyway take the square root of A but when I
multiply it by Y, the imaginary part of the square root of A is dropped, and I
do not get the right answer.
I tried
2003 Jun 26
1
krige in gstat() package
HI,
I wonder does anyone have experience with doing sequential gaussian
simulation with krige() function in gstat?
I find it VERY slow compared to use krige() to achieve kriging function
itself.. I wonder why, is that because it has to model the variogram, and
do the kriging separately for each point to be simulated?
so it would be N times slower to achieve the simulation than the kriging
if
2017 Sep 24
1
R version 3.3.2, Windows 10: gstat package: Error in fitting a variogram model using 'fit.variogram' function
Dear Members,
I am trying to fit a variogram model using fit.variogram function from the gstat package. The figure showing my experimental variogram can be seen here: https://i.stack.imgur.com/UZXw4.png
My code line for this operation is:
> c2.vgm.fit<-fit.variogram(c2.vgm.exp,vgm(nugget=0, psill=400,model="Exp",range =40000),fit.method = 7)
The system throws following error
2009 Nov 23
1
R: Re: chol( neg.def.matrix ) WAS: Re: Choleski and Choleski with pivoting of matrix fails
It works! But Once I have the square root of this matrix, how do I convert it
to a real (not imaginary) matrix which has the same property? Is that
possible?
Best,
Simon
>----Messaggio originale----
>Da: p.dalgaard at biostat.ku.dk
>Data: 21-nov-2009 18.56
>A: "Charles C. Berry"<cberry at tajo.ucsd.edu>
>Cc: "simona.racioppi at
2013 May 02
1
function gstat r with pyhton
? stato filtrato un testo allegato il cui set di caratteri non era
indicato...
Nome: non disponibile
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20130502/8bc15613/attachment.pl>