search for: baci

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 is because the baci variable is not a > an integer, Why would you "guess" that? Given your magnitudes, I suspect it's a scaling issue....

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 64 bit R. It runs fine for the fun...

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(),...

Hi! I?m Zatul from Malaysia. I?m currently doing simple task on BACI approach in ecology study. I?m a newbie in ecology study. Perhaps, I can get link and some idea regarding how to analyse BACI data. Tq. Regards. Sent from Windows Mail [[alternative HTML version deleted]]

...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 ualberta.ca> wrote: > 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 <-...

...it." >> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) >> >> >> On Tue, Apr 26, 2016 at 10:11 AM, Andr? Luis Neves <andrluis at ualberta.ca> >> wrote: >> > 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. >> > >> >...

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...

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 library. I've two questions: 1.- how I can inclu...

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...

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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...