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hello! does anyone know how to get values out of an interp object (from akima package)? ive constructed an elevation map and would like to numerically see the calculated z values of data points, which were not empirically sampled (basically...

i'm sorry to bother but... sometimes theres an attachment in the posts on the list, a single file called: Teil 1.2 whys that? i dont want to open it to find out, as i have used computers before...

dear list! i have run several glm analysises to estimate a mean rate of dung decay for independent trials. i would like to compare these results statistically but can't find any solution. the glm calls are: dung.glm1<-glm...

dear list! i have run several glm analysises to estimate a mean rate of dung decay for independent trials. i would like to compare these results statistically but can't find any solution. the glm calls are: dung.glm1<-glm...

hello! I did a count survey on a tropical fish species! Well, I didnt do it, Im just helping at the statistics-stage. We recorded some water parameters alogside each catch, such as no3, no2, po4 etc. as the data...

hello dear list! as I am currently helping someone with their statistical analysis of a count survey, I stumbled upon a very basic question upon model optimization: when fitting a model like: model<-lmer(abundance~(x+y+z)^3,family...

hello dear list! since we want to do a model analysis and some people would like to see pseudo-R^2 values for different types of glm of a logistic regression, i've decided to write a function that computes...

hello! i'm dealing with the following: i've collected a factor covariable at irregularly placed sampling points along a line with spatial informations, i.e.: dataset<-c(x-coordinates, y-coordinates, level-of-factor) the factor describes the density...

dear list! i am running an anlysis on proportion data using binomial (quasibinomial family) error structure. My data comprises of two continuous vars, body size and range size, as well as of feeding guild, nest placement, nest type and foragig...

hello list! I'm sorry, I just stumbled over this strange behaviour (at least I am not able to explain the behaviour, therefore I assume it to be a strange behaviour): attach(water) # I know, this is not recommended names...

hello! ive come across the following problem: im writing a function to ease the production of maps. as my tables have headers, id like to include an option in my function header to pass these columns to use them inside...

hello dear mixed effects modeller! i'm a little confused about the output of lmer in R. in michael j. crawleys excellent book on R and in various examples in the internet, lmer outputs of poisson family models include a...

hello dear list! I wonder about the layout of my csv for my study design: i have 11 different sites. each site had been visited 9 times. on each visit, 6 distinctive water parameters had been taken ONCE on each...

Hello! I am doing an analysis on a questionnaire of hunters taken in 4 different districts of some mysterious foreign country. The aim of the study was to gather info on the factors that determine the hunting success of a...

Hello there! I am still struggling with a binomial response over all categorical variables (some of them with 3 levels, most with 2 levels). After initial struggles with glm's (struggle coming from the data, not the actual analysis) I...

dear list! I KNOW this has been answered a million times before. But, as some might remember from their "freelance" times as a statistic consultant, sometimes you're blinded by the facts. I KNOW I have seen this problem solved...

Am 15.04.2011 20:14, schrieb Christian Hennig: > Normality of the predictors doesn't belong to the assumptions of the > GLM, so you don't have to check this. > > Note, however, that there are all kinds of potential problems...

Hello dear list! Maybe I am demanding too much, but I am having problems finding the right way to tackle a seemingly trivial problem: We counted fish at different sites. In order to assess habitat quality at each site, we...