Displaying 20 results from an estimated 1000 matches similar to: "Some problems with X11"
2006 Oct 03
1
loaded or not?
Dear all,
Sorry for such basic question, but. when R "says":
library(Rcitrus)
Loading required package: geoR
Loading required package: sp
-------------------------------------------------------------
Analysis of geostatistical data
For an Introduction to geoR go to http://www.est.ufpr.br/geoR
geoR version 1.6-8 (built on 2006/06/29) is now loaded
2008 Aug 15
1
Strange error message from geoR´s likfit () lik. max. func.
ComRades:
I am geeting the error message
Error in ldots[[which(MET)]] : attempt to select less than one element
when I try to fit the geostatistical model with the likfit() function of
geoR.
I have tried with old data for which likfit() successfully maximised the
likelihood in previous versions of geoR, and yet the current version
fails.
I have tried in Windows Vista and Windows XP (I haven't
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
2006 Mar 17
3
can't load "geoR"
Dear R list,
I've just installed R and then followed the instructions to install the
package "geoR" from within R by using the following line of code:
install.packages("geoR", contriburl = "http://www.est.ufpr.br/geoR/windows")
This installed okay under the folder C:\documents and settings\ ...
But when I follow the instructions in the illustrative session
2004 Mar 24
2
geoR - help for bayesian modelling
Hi,
I am trying to do a bayesian prediction for soil pollution data above
a certain threshold, using geoR.
Everything is working fine until i am doing the krig.bayes. I tried to
do the prediction on a grid 67 by 113 cells and my computer is
freezing to death. At larger numbers of cells it tells me after a while
that it reaches the max. memory of 511 Mb. My computer has only
512 Mb of RAM.
2005 Dec 13
1
bug in geoR (?)
I've enconuntered this problem with the last cran version of geoR:
> library(geoR)
> day <- rep(1:2, each=5)
> coords <- matrix(rep(runif(10),2), 10, 2)
> data <- rnorm(10)
> data[1] <- NA
> as.geodata(cbind(coords, data, day), realisations=4)
as.geodata: 1 points removed due to NA in the data
Errore in as.geodata(cbind(coords, data, day), realisations = 4) :
2003 Sep 30
2
non-linear trends in kriging model
Hi
I am struggling to fit a non-linear trend using the
likfit function in geoR.
Specifically I want a sigmoidal function, something
like SSfpl in the nls package to fit the trend. But
it seems trend.spatial in geoR only works with lm or
glm type models.
Any ideas how I can specify the model to calculate the
kriging parameters using REML, including the
parameters of a sigmoidal trend function
2003 Sep 10
1
geoR variogram problem
Dear GeoR-er,
If I use the variog function in the latest release of geoR, the first lag is
always ignored.
For instance, if you read in geodata, calculates the variogram using the
variog function and give in a uvec like uvec=seq(0,max,by=2.44), it only
starts giving results from distance=4.88 and ignores 2.44!
This wasn't the case in former versions of geoR. Is this done on purpose?
Why?
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
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.
2012 Jul 19
1
3-d kernel smooth by the "kde" function
Dear R community,
I'm having hard time to understand the kde function in "ks" package. Let me
use a 3-dimensional kernel smooth example to explain my question using the
elevation data in geoR.
### here is what I did ###
library(ks)
require(geoR)
data(elevation)
elev.df <- data.frame(x = elevation$coords[,"x"], y =
elevation$coords[,"y"], z = elevation$data)
2006 Jan 05
1
Memory limitation in GeoR - Windows or R?
Dear Aaron,
I am really a tool user and not a tool maker (actually an ecologist
doing some biostatistics)... so, I take the liberty of sending a copy of
this e-mail to the r-help list where capable computer persons and true
statisticians may provide more relevant information and also to Paulo
Ribeiro and Peter Diggle, the authors of geoR..
I really feel that your huge matrix cannot be
2003 Sep 04
1
AIC and significance tests
Hi
I have two geostatistical models from geoR. An ordinary kriging model with
AIC=-148.6 and a universal kriging model with AIC=-156.7, there are 345
data points. The improvement shown by the AIC by adding a trend component
to the model seems quite small given the number of data points, is there a
test to see if the improvement to the model fit is significant?
Thanks
David
2006 Apr 14
5
UTF8 letters are imaged incorrectly (PR#8770)
Full_Name: Mikhail Bocharov
Version: 2.2.1
OS: Linux
Submission from: (NULL) (62.148.130.28)
Cyrillic UTF8 letters are imaged incorrectly
Sorry, but English is not my native language
My operating system is Gentoo-linux. Now i want get the gparhics with russian
title
for example: plot(1:20, type='l',
main='Утечка')
2006 Jun 02
1
geoR, plot of variog4 lines incomplete
I'm using R for Mac OSX version 1.14 (2129) and the geoR package
version 1.6-5 (the current version in the R repository). I'm running
R in OS 10.4.6 on a Mac G4 iBook (933MHz, 640 MB DDR SDRAM). I
searched the R archive and did not find a posting on this issue.
I want to use the variog and variog4 functions of geoR to
characterize the pattern of spatial autocorrelation of tree
2005 Jun 11
1
R-help Digest, Vol 28, Issue 11
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of dwfu
> Sent: 11 June 2005 13:59
> To: r-help at stat.math.ethz.ch
> Subject: Re: [R] R-help Digest, Vol 28, Issue 11
>
>
> Dear all,
> I'm new using R and in (geo)statistics. I have a problem with solving
> my homework questions.
2003 Feb 11
2
geoR question from new R user
Hi,
I'm a new R user. My goal is to do a variogram using geoR.
I started by trying to do the example in the geoR Illustrative Session
using my own data.
I am able to read in my Ascii data using: D <- matrix(scan("file.dat",
n=530*3), 530,3, byrow=TRUE).
Then I use: as.geodata(D, coords.col=1:2, data.col=3) to make the
object D geodata.
I check the descriptive statistics,
2005 Dec 29
1
Help with Kriging
R Experts,
I'm looking for some help with the geoR package. I'm trying to krig
some data without using a global neighborhood. I would like to set my
moving neighborhood to a distance, say 100 meters, where I know my data
is spatially correlated. I have tried the ksline function, but that
only allows my moving neighborhood to be set to a number of data points.
But, since my data
2008 Aug 18
1
GeoR model.control - defining covariates at prediction locations
Hi,
Im using geoR and I'm trying to do some predictions, based on an external
trend.
I'm having some problems specifying my model.control, specifically how do I
define my model, and also the source of the covariate data at the prediction
locations?
I am assuming that the covariate data at the prediction locations should be
imported to a geodata object along with the prediction location
2006 Aug 30
1
Handling realisations in geoRglm
Dear R users:
I want to model mosquito count data based on landcover attributes and
meteorological variables using a Poisson GLSM in the geoRglm package. I
have monthly mosquito counts over more than 20 years with repeated
observations from individual trap sites over time. I have used
as.geodata() to successfully read my dataset into the geodata format
utilized by geoR and geoRglm,