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Hi, Could anyone tell me the name (if there is one) of the class of matrices (z) formed by: a) z<-outer(x,y, "==") and b) z<-outer(x,y, "!=") Thanks in advance, Jarrod.

Hi, I would like to compile a shared C++ library but using MPI. Is there away to compile shared libraries using the functionality of mpiexec supplied with MPICH-2. Thanks for any help, Jarrod

Hi, I am having trouble compiling some parallelised c++ code using R CMD SHLIB because I cannot seem to specify which compiler is used. The default uses g++ and I would like to use mpicxx distributed with MPICH-2. Is...

Hi, Does anyone know an easy way of retaining rows in a model.matrix where missing values are present in the predictors. Ideally I'd be able to retain these rows as zeros. Thanks, Jarrod -- The University of Edinburgh is...

Hi, random = ~ us(trait:at.level(treatment,1)):individuals+us(trait:at.level(treatment,2)):individuals does what you want. Cheers, Jarrod On 13/03/2016 11:22, Alexandre Courtiol wrote: > random = ~ us(trait:treatment):individuals, -- The University of Edinburgh...

Hello all, In a previous posting regarding glmm.admb it is stated that glmm.admb can handle 2 nested random effects. I can only fit a single random term at the moment, and wondered if anyone could provide me with...

Hi, I was wondering whether there was an easy way to change the attributes of all elements in a data.frame (rather than looping through elements)? Specifically, I would like to set the "dim" attributes to NULL Thanks for any...

Hi Adrian, rcov~idh(trait):units should read rcov=~idh(trait):units Note that your priors may be quite informative with nu=2. Cheers, Jarrod On 9 Mar 2011, at 17:18, Adrian Jaeggi wrote: > rcov~idh(trait):units -- The...

Hi, I cant seem to get some uppercase greek symbols (e.g. Delta) using plotmath. I'm on version R 2.7.0 (2008-04-22) Fedora Core 7 (34 bit). I have installed a whole heap of fonts, but...

Dear All, I was wondering whether any one knows of a matrix bending function in R that can turn non-positive definite matrices into the nearest positive definite matrix. I was hoping there would be something akin to John Henshall...

-- HI, Does anyone know how to get the directory name for a file that is sourced through source file (Mac) or source R code (PC) on the R toolbar. Yours, Jarrod Hadfield -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci...

Dear All, I have spatial data (presence/absence for 4000 squares) on 250 bird species and would like to use a model-based clustering technique to test for species associations. Is there any way of passing a distance/correlation matrix...

Hi, I have a Sweave vignette in a package I have written. When building, the citations are not put into the pdf - perhaps because two passes of the tex file are required but only one is executed. Is there a...

Hi All, I am confused about the differences between PQL and Laplace approximations to GLMM (after all, Breslow and Calyton's `PQL paper' seems to describe a Laplace approximation). If anyone could point me to a review paper that summarises...

Hi, Larry Schaeffer has made available CR Henderson's (the man that invented the mixed-model) 1984 book on-line at http://cgil.uoguelph.ca/pub/Henderson.html for those interested. The emphasis of the book is on the animal...

Hi, Also tcrossprod(beta_hat, X) + U should be (tcrossprod(beta_hat, X) + U)/sqrt(1 + k^2 * rowSums(mMCMC$VCV[,"units"])) for pred2_hand Cheers, Jarrod On 02/11/2016 16:07, Jarrod Hadfield wrote: > tcrossprod(beta_hat, X...

Hi Everyone, I would simply like to coerce a character string into an expression: something like: as.expression(paste(letters[1:3], collapse="+")) but I can't seem to get rid of the quotes. The only way I can get...

Dear All, I was wondering whether anyone knew of an efficient way of testing whether a non-singular square sub matrix of dimensions p X p exists within a rectangular matrix of dimensions p x m. Typically, p will be...