search for: dormanns

Displaying 10 results from an estimated 10 matches for "dormanns".

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2002 Jul 17
5
R crashes when using "xyplot" (PR#1801)
Full_Name: Carsten Dormann Version: 1.4.0 OS: Windows 2000 Submission from: (NULL) (192.171.129.9) Hello, using the function xyplot I repeatedly had R crashing. One example is from the book of Mick Crawley (Stat. Computing in Splus), where the commandline reads: xyplot(Weight~Age|Genotype, pch=16) I also had the same phenomenon with my own data and commands even simpler. I reinstalled
2010 Nov 03
1
dll problem with C++ function
Dear fellow R-users, I have the problem of being unable to repeatedly use a C++-function within R unless by dyn.unloading/dyn.loading it after each .C call. The C++-code (too large to attach) compiles without problem using R CMD SHLIB. It loads (using dyn.load("myfun.so")) and executes (via .C(myfun, ...) ) properly. The function returns no object, only reads files from disk,
2009 Jul 02
1
MCMC/Bayesian framework in R?
Dear R-users (and developers), I am looking for an efficient framework to carry out parameter estimations based on MCMC (optionally with specified priors). My goal is as follow: * take ANY R-function returning a likelihood-value (this function may itself call external programmes or other code!) * run a sampler that covers the multidimensional parameter space (thus creating a posterior
2006 Apr 28
9
[AWDR] Tutorial in A4 wont ''destroy'' items
Hello, I''m working through the tutorial, and I''ve run into a little snag. In the first part of the tutorial, the destroy link is not working correctly. I can''t figure out where I goofed. Removing :confirm doesn''t seem to resolve the issue. Thanks, Randy. development.log ----->8----- Processing AdminController#destroy (for 127.0.0.1 at 2006-04-27
2012 May 29
1
GLMMPQL spatial autocorrelation
Dear all, I am experiencing problems using the glmmPQL function in the MASS package (Venables & Ripley 2002) to model binomial data with spatial autocorrelation. My question - is the presence of birds affected by various hydrological parameters? Presence/absence data were collected from 83 sites and coupled against hydrological data from the same site. The bird survey sampling effort
2008 Mar 12
1
Spatially Lagged Predictor Variable Models
Hi Everyone, I am doing a project based on "Spatially Lagged Predictor Variable Models", I would like to know which package in R would execute this model. Also, I am new to this field of spatial statistics. Any suggestions for a good book on spatial regression analysis would be appreciated. Thanks Again. Cheers Arun -- View this message in context:
2010 Jul 08
0
Psudeo R^2 (or other effect size) in spatial gls regressions
Dear all, I have been using the function gls in the package nlme in R to fit some spatial regressions (as described in Dormann et al.). However, I have been struggling trying to find a way to calculate a measure of effect size from these models, so I wanted to know if any of you had an idea on how to do this. More precisely, I am producing a multiple model with an exponential correlation
2007 Oct 22
3
Spatial autocorrelation
Hi, I have collected data on trees from 5 forest plots located within the same landscape. Data within the plots are spatially autocorrelated (calculated using Moran's I). I would like to do a ANCOVA type of analysis combining these five plots, but the assumption that there is no autocorrelation in the residuals is obviously violated. Does anyone have any ideas how to incorporate these spatial
2008 Dec 18
4
autologistic modelling in R
Hi, I have spatially autocorrelated data (with a binary response variable and continuous predictor variables). I believe I need to do an autologistic model, does anyone know a method for doing this in R? Many thanks C Bell
2005 May 11
5
Implementing R on IBM p690 cluster Jump
Dear All, we're trying to implement R on the IBM p690 cluster "Jump" at the research centre in J?lich, Germany (c.f. http://www.fz-juelich.de/nic/Supercomputer/computer-e.html) using the most recent version of R (2.1.0) and precisly following the installation instructions. After ./configure we get the final message: ---------------- R is now configured for powerpc-ibm-aix5.2.0.0