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26 results for “from:Torsten Hauffe”

Estimated dependent variable in GL(M)Ms
Torsten Hauffe · Jan 11, 2019 · r-sig-mixed-models

Sounds like you are looking for meta-analysis. But I'm not 100% sure about this. Cheers! On Fri, 11 Jan 2019 at 19:57, Roy Averill-Murray <royaverillmurray at gmail.com> wrote: > How does one estimate beta parameters and...

Any R based GIS package to extract layer associations revisited
Torsten Hauffe · Feb 20, 2019 · r-sig-ecology

Hi Bruce, Sounds like that you are looking for sp:::over(). HTH, Torsten On Wed, 20 Feb 2019 at 16:20, Bruce Miller <batsncats at gmail.com> wrote: > Hi all, > Back in January I inquired about R packages to extract...

multivariate glmm
Torsten Hauffe · Feb 17, 2017 · r-sig-mixed-models

Dear list members, I' m fitting a multivariate time series using mgcv:::gamm. I cannot run a summary on my fitted object and no gam.check(). Any idea how I can assess the model fit and diagnostic plots? Because I...

clustering communities by an environmental variable
Torsten Hauffe · Apr 24, 2020 · r-sig-ecology

Hi Irene, I'm not sure whether I understand your aim completely. It sounds similar to stratigraphically constrained clustering (CONISS) - an approach often used in paleoecology and implemented in the packages rioja and adjclust. Instead of stratigraphy/age you could...

Error in Maxent (dismo package)
Torsten Hauffe · Sep 22, 2020 · r-sig-ecology

Hi, I can't try it but maybe you need a vector with all factorial predictors. Hence, put them all in c(). me <- maxent(predictors, occtrain, factors=c("bion","morfo", "sed")) On Tue, Sep 22, 2020 at 10:08 AM...

2-way adonis (PERMANOVA) incl interaction - how to test for main effects?
Torsten Hauffe · Oct 16, 2018 · r-sig-ecology

"adonis2(speciesdataset~A*B, by="margin") but then only the effect of the interaction is tested." This is not entirely correct. adonis2(speciesdataset~A:B, by="margin") would test the interaction alone. ~A*B unfolds to ~A+B+A:B...

graphs in corner of the pane, Windows 10 is the difference
Torsten Hauffe · May 5, 2017 · r-sig-ecology

Hi Mike, not sure whether I understand what you mean with Word 7 (2007?). Do you copy and paste the figure or do you export it with a function like tiff() or pdf()? In the first case, this is maybe...

Phylogenetic turnover using large datasets
Torsten Hauffe · Mar 6, 2020 · r-sig-ecology

(sorry, I forgot to include the list) Hi, My guess is that the problem is not the size of the phylogeny but the dimension of the community matrix. How many localities and species per locality do you have? Does it...

Regression when Y has an estimation variance
Torsten Hauffe · Jan 14, 2019 · r-sig-ecology

Bayesian mixed models implemented in MCMCglmm and brms have an argument to specify the variances for meta analysis. I never used them for this task, though. However, the author of brms is psychologist where meta analyses are common. Cheers! On...

Use of PCoa in varipart
Torsten Hauffe · Jun 8, 2020 · r-sig-ecology

Hi Fernando, using a PCoA for variation partitioning should be possible. This should equal a distance-based redundancy analysis (plus some magic to make the PCoA euclidean). I don't know ade4 very well but alternatively you could use the...

Subjecting data to differential equations deSolve
Torsten Hauffe · Nov 7, 2019 · r-sig-mixed-models

Dear list, My apologies if this question doesn't fit the scope of the mailing list. I try to solve some differential equations with the deSolve::ode and need to feed some values at certain time-points into the equations...

Bayes generalized linear binomial, logit
Torsten Hauffe · Sep 10, 2020 · r-sig-mixed-models

What went wrong when following this manual for installing Rstan? https://github.com/stan-dev/rstan/wiki/Installing-RStan-from-source-on-a-Mac On Thu, Sep 10, 2020 at 10:02 AM Thierry Onkelinx via R-sig-mixed-models...

trasformation of matrix for iNEXT extrapolation interpolation of Hill's numbers
Torsten Hauffe · Jun 20, 2019 · r-sig-ecology

Hi, In general, you can create a list containing matrices, data.frames, or (almost) any object in the following way: # 2 Matrices as example M1 <- matrix(NA, ncol = 5, nrow = 3) M2 <- matrix(NA, ncol = 3, nrow = 5) List <- list...

2-way adonis (PERMANOVA) incl interaction - how to test for main effects?
Torsten Hauffe · Oct 16, 2018 · r-sig-ecology

I see. Thanks for explaining Jari! On Tue, 16 Oct 2018 at 14:54, Jari Oksanen <jari.oksanen at oulu.fi> wrote: > > > On 16/10/18 11:23, Torsten Hauffe wrote: > > "adonis2(speciesdataset~A*B, by="margin") but then only...

Comparison between the ouputs of the lmer and the brm (from the brms package) functions
Torsten Hauffe · Apr 16, 2021 · r-sig-mixed-models

What is happening when you changeyour sample_prior = "yes" in brm() back to the default "no"? (Disclaimer: From the brm help, I only understand the settings "no" and "only" sampling the prior). Cheers! On Fri, Apr 16, 2021 at 12...

Phylogenetic turnover using large datasets
Torsten Hauffe · Mar 10, 2020 · r-sig-ecology

Great! Having a machine with 120 GB of RAM (*envy*), you can certainly use parallelization to boost the turnover calculation. Cheers! On Tue, Mar 10, 2020 at 5:40 PM Jens Ringelberg <jens.ringelberg at gmail.com> wrote: > Hi Torsten...

LEVELS function NULL
Torsten Hauffe · Jun 23, 2020 · r-sig-ecology

Hi, What is the output of class(my_data$Sampling)? If it is not factor (but character), you could write my_data$Sampling <- as.factor(my_data$Sampling) Then levels(my_data$Sampling) should return Sep18 etc. Cheers! On Tue...

multivariate mixed model for composition data : RRPP, mvabund as alternatives to permanova?
Torsten Hauffe · Apr 29, 2019 · r-sig-mixed-models

The boral package features a straight-forward coding of nested 'random' row effects. If I remember right, the help package includes an 2-level nested example. boral uses Bayesian inferrence and not permutations and is therefore closer to mvabund than...

Error in Kriging Procedure
Torsten Hauffe · Dec 14, 2018 · r-sig-ecology

Hi Alexandre, looks like you are trying to apply inverse distance weighting with gstat. For that your command should be something like this: Model_ok <- gstat( id='NMDS1_kri', formula= NMDS1 ~ 1 , data = X) Where X is a data.frame...

interpreting ecological distance approaches (Bray Curtis after various data transformation)
Torsten Hauffe · Apr 3, 2019 · r-sig-ecology

Hi, you may have a look to the following publication: http://onlinelibrary.wiley.com/doi/10.1111/1365-2656.12362/abstract Barwell et al. 2015 nicely compare the characteristics of different pairwise beta-diversity measures. They give recommendations for choosing...

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