similar to: before-after control-impact analysis with R

Ok. I`m trying to run a Poisson glmm with an observation-level random intercept. But I`m getting the following error for the 'Baci' variable: 'Error: (maxstephalfit) PIRLS step-halvings failed to reduce deviance in pwrssUpdate'. I guess this message is because the baci variable is not a an integer, and cannot be transformed into an integer as R has a threshold of 2x10^9 even in

Dear all: I converted the columns (Baci, Meti, Fungii, Protozoai) into integers (using excel) and then imported the data (.txt) into R. Interestingly, the other three variables were loaded as INT, but the 'Baci' one continued as Num. I imported the data using the following command line: X <- read.delim(file.choose(), header = TRUE, dec =

Inline. -- Bert On Tue, Apr 26, 2016 at 2:25 PM, Andr? Luis Neves <andrluis at ualberta.ca> wrote: > Ok. I`m trying to run a Poisson glmm with an observation-level random > intercept. But I`m getting the following error for the 'Baci' variable: > > 'Error: (maxstephalfit) PIRLS step-halvings failed to reduce deviance in > pwrssUpdate'. I guess this message

Can you explain why you need them as 'integer', A floating point representation can hold a value upto ~4.5e15 as an "integer" keeping the precision that you might need. Jim Holtman Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it. On Tue, Apr 26, 2016 at 1:11 PM, Andr? Luis Neves <andrluis at

Hello, I am performing a BACI analysis with ANOVA using the following glm: fit1<-glm(log(Cucs_m+1)~(BA*Otter)+BA+Otter+ID+Primary, data=b1) The summary(aov(fit1)) shows significance in the interaction; however, now I would like to determine what combinations of BA and Otter are significantly different (each factor has two levels). ID and PRIMARY substrates are categorical and included in

Hola a todos, Llevo unos días buscando en Internet alguna librería de R que me permita el cálculo de NURBS a partir de ficheros de texto con coordenadas X Y Z de puntos. No he encontrado nada que me convenza y finalmente, hoy, he empezado a trabajar este asunto en MATLAB (la última vez que había usado este programa fue en 1999). ¿Alguno de vosotros ha trabajado en R? ¿Podríais hacerme alguna

Hi to all the people, I'm working with abundance data of some species, but containing too zero values, and the factors are the ones typical in a BACI experiment (Before-and-After-Control-Impact). Thus, these are two fixed factors. As the data does not holds the normality and homogeneity of variances assumptions of clasiccal ANOVA, I'm trying to fit a zero-altered model using the MCMC glmm

Hi, I need help creating a code for a multiple BACI design (Before-After Control-Impact) ANOVA. I'm new to R and basically need to run a complex mixed model ANOVA that treats location as a random factor. Data are from a fire experiment, run 2001-2004 (2 years pre, 2 years post). Response is bird abundance. 4 Treatments had 3 replicates each (forest stands): 1. Control, 2. Prescribed fire

Hello everybody, In am trying to analyse a BACI experiment and I really want to do it with R (which I find really exciting). So, before moving on I though it would be a good idea to repeat some known experiments which are quite similar to my own. I tried to reproduce 2 published examples but without much success. The first one in particular is a published dataset analysed with SAS by

Please respond to the list. It will be obvious why in a second. That's not my threshhold! -- it's R's. Your numeric integers cannot be exactly represented as integers in R. Period. Maybe there are special packages for extended arithmetic that can do this. but someone else would have to help you there. See here for a discussion that might be helpful:

Amo le curve femminili, senza avere una particolare predilezione per questo o quel tipo di curva. Per intenderci, il seno mi piace sia che sia piccolo, sia che sia grande. La sensazione al tatto poi ? sempre diversa e foriera di una straordinaria variet? di emozioni. Di quelli piccoli ? bello disegnare il profilo con un dito (solitamente s'inturgidisce subito... mhhh) di quelli grandi mi piace