search for: zooekol

Displaying 12 results from an estimated 12 matches for "zooekol".

2009 Dec 15
1
[Fwd: snowfall on Win7]
...e Win7 on a private machine. I will try to find a machine with this OS and test it. Anybody having experiences with Win7 yet? Greetings Jo > -------- Original Message -------- > Subject: [R] snowfall on Win7 > Date: Tue, 15 Dec 2009 11:25:37 +0100 > From: Ola Olsson <Ola.Olsson at zooekol.lu.se> > To: r-help at r-project.org <r-help at r-project.org> > > Dear list, > > Does the snowfall package work under Windows 7? > > Recently I upgraded from Windows Vista to Windows 7, and at the same > time upgraded R from 2.8.1 to 2.10. On my machine (Intel i7...
2013 Oct 26
2
Problems with lme random slope+intercept model
Dear all, I'm trying to fit a model on ecological data in which I have measured a few biotic and abiotic factors over the course of a few days in several individuals. Specifically, I'm interested in modelling y ~ x1, with x2, x3, and 'factor' as independent variables. Because data suggests both slope and intercept (for y ~x1) might differ between individuals, I'd want to
2010 Oct 18
1
Crossed random effects in lme
Dear all, I am trying to fit a model with crossed random effects using lme. In this experiment, I have been measuring oxygen consumption (mlmin) in bird nestlings, originating from three different treatments (treat), in a respirometer with 7 different channels (ch). I have also measured body mass (mass) for these birds. id nest treat year mlmin mass ch hack 1EP51711 17
2011 Jan 07
4
Problems with glht function for lme object
Dear all, I'm trying to make multiple comparisons for an lme-object. The data is for an experiment on parental work load in birds, in which adults at different sites were induced to work at one of three levels ('treat'; H, M, L). The response is 'feedings', which is a quantitative measure of nest provisioning per parent per chick per hour. Site is included as a random effect
2007 Oct 16
0
Help with repeated measures!
Hello all, I'm an R novice, recently trying to implement R in my research. Using the data frame below, I want to construct a repeated measures model, with energy expenditure (kjday) as dependent of treatment (code) using mass as a covariate. ind mass kjday code 79 15.8 45.216 3 42 16.5 44.64 3 10 14.85 45.216 3 206 15.75 45.216 3 23 12.15 42.336 3 5 14.6 51.264 3 .... 79 16.9
2007 Oct 31
0
Problems with generating F-distr from lme()
Dear all, Using the data set and code below, I am interested in modelling how egg temperature (egg.temp) is related to energy expenditure (kjday) and clutch size (treat) in incubating birds using the lme-function. I wish to generate the F-distribution for my model, and have tried to do so using the anova()-function. However, in the resulting anova-table, the parameter kjday has gone from
2008 Mar 03
1
Problem with lme4 use and installation
Dear all, I've been trying to install the lme4 package from http://r-forge.r-project.org/projects/lme4/. However, when wanting to load the package, I get an message saying that "x-tabs" are masked (see pasted code). Can anyone point to what has gone wrong? Kind regards, Andreas Nord Sweden > utils:::menuInstallLocal() package 'lme4' successfully unpacked and MD5 sums
2009 Dec 15
0
snowfall on Win7
Dear list, Does the snowfall package work under Windows 7? Recently I upgraded from Windows Vista to Windows 7, and at the same time upgraded R from 2.8.1 to 2.10. On my machine (Intel i7 based) snowfall worked perfectly on my previous installation, but after the upgrade the same scripts do not work. When I issue e.g. sfInit(parallel=T, cpus=2) # (or 'cpus=7', which I often used
2011 Nov 22
1
glht for lme object with significant interaction term
Dear all, I'm working on some data from an experiment on the breeding behavior of birds. In short, I have been measuring how the time spent on performing a certain task (variable 'mean_on_active') differs over time (variable 'day', 2 levels) across three experimental categories (variable 'treat'; levels 'C', 'R', 'E'). The model shows a
2010 Feb 04
1
random slope models with lme --> failured to converge
Dear all, I am working on a data set in which I have sequentially measured egg temperatures ("eggtemp") in birds incubating in different ambient temperatures ("treat", sample data set below), "id" is not replicated within treatment. id treat eggtemp 1 79 3 30.90166 2 42 3 34.94044 3 10 3 32.69945 4 206 3 36.64127 5 23 3 31.80055 6
2007 Nov 01
2
F distribution from lme()?
Dear all, Using the data set and code below, I am interested in modelling how egg temperature (egg.temp) is related to energy expenditure (kjday) and clutch size (treat) in incubating birds using the lme-function. I wish to generate the F-distribution for my model, and have tried to do so using the anova()-function. However, in the resulting anova-table, the parameter kjday has gone from being
2008 Aug 25
3
lmer4 and variable selection
Dear list, I am currently working with a rather large data set on body temperature regulation in wintering birds. My original model contains quite a few dependent variables, but I do not (of course) wish to keep them all in my final model. I've fitted the following model to the data: >