[R-sig-eco] A beginner's question to constrained ordinations with vegan

ut wasnt too successful. -- Tim Richter-Heitmann ___ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology

[R-sig-eco] [vegan]Error in as.vector(x, mode) : , cannot coerce type 'builtin' to vector of type 'any' when perfroming a cca on a dataframe

as the datasets look and behave the same otherwise. Any idea why this could happen? I am sorry for not providing data for reproduction, as the data sets are pretty large. -- Tim Richter-Heitmann (M.Sc.) PhD Candidate International Max-Planck Research School for Marine Microbiology Universi

[R-sig-eco] Choice of constrained ordination method on complex data

should take at this point. Cheers, -- Tim Richter-Heitmann (M.Sc.) PhD Candidate International Max-Planck Research School for Marine Microbiology University of Bremen Microbial Ecophysiology Group (AG Friedrich) FB02 - Biologie/Chemie Leobener Straße (NW2 A2130) D-28359 Bremen Tel.:

Re: [R-sig-eco] Choice of constrained ordination method on complex data

Sorry, i messed up the first link: Here is the actual image with summaries obtained by R: http://s22.postimg.org/7vlhuhrap/Picture1.png I am really sorry. On 18.05.2015 11:42, Tim Richter-Heitmann wrote: Good Morning, i need to once more ask you for advice. My dataset includes 360 samples

[R-sig-eco] How to deal with rare species post-rarefaction - subsampling or not?

for sample comparability. I think i have shifted the problem of subsampling now to the area of rare and very rare biospheres. Sorry for bothering, many thanks for reading it. -- Tim Richter-Heitmann (M.Sc.) PhD Candidate International Max-Planck Research School for Marine Microbiology University

[R-sig-eco] Differences between total constrained inertia (rda) and variance explained (varpart()) in vegan

consistent for me in a variety of datasets. Can somebody explain to me the difference? Thank you! -- Tim Richter-Heitmann (M.Sc.) PhD Candidate International Max-Planck Research School for Marine Microbiology University of Bremen Microbial Ecophysiology Group (AG Friedrich) FB02 - Biologie/Chemie

Re: [R-sig-eco] Differences between total constrained inertia (rda) and variance explained (varpart()) in vegan

From: R-sig-ecology on behalf of Tim Richter-Heitmann Sent: 02 November 2015 15:58 To: r-sig-ecology@r-project.org Subject: [R-sig-eco] Differences between total constrained inertia (rda) and variance explained (varpart()) in vegan Dear list, when i perform RDA on a species set

[R-sig-eco] interpreting ecological distance approaches (Bray Curtis after various data transformation)

rts. Any advice is very much welcome. Thank you. -- Dr. Tim Richter-Heitmann University of Bremen Microbial Ecophysiology Group (AG Friedrich) FB02 - Biologie/Chemie Leobener Straße (NW2 A2130) D-28359 Bremen Tel.: 0049(0)421 218-63062 Fax: 0049(0)421 218-63069 ___

Re: [R-sig-eco] forward selection of significant eigenvectors

ted]] ___ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology -- Dr. Tim Richter-Heitmann University of Bremen Microbial Ecophysiology Group (AG Friedrich) FB02 - Biologie/Chemie Leobener Straße (NW2 A2130) D-28

Re: [R-sig-eco] forward selection of significant eigenvectors

we showed that you should use a global test before > performing forward selection (this step is suggested by Blanchet et al > but rarely performed  in ecological studies). > > Cheers > > > Le 06/06/2019 à 16:41, Tim Richter-Heitmann a écrit : >> Dear Irene, >>

[R-sig-eco] multinomial regression for community distances turned into a factor

logistic regression models (for case >0.95 and for case <-0.95) or a multinomial regression model for all three levels, e.g. multinom(Factor~Space*Time)? If so, what would a model look like in R? Thank you for your advice. -- Dr. Tim Richter-Heitmann University of Bremen Microbial Ecophysi

[R-sig-eco] Redundancy analysis with ONLY factor variables

of. Thank you and best wishes, Tim -- Dr. Tim Richter-Heitmann University of Bremen Microbial Ecophysiology Group (AG Friedrich) FB02 - Biologie/Chemie Leobener Straße (NW2 A2130) D-28359 Bremen Tel.: 0049(0)421 218-63062 Fax: 0049(0)421 218-63069 __

[R-sig-eco] envfit on constrained ordination

ordination, which already tries to find a visual representation of environmental gradients through the ordination. Thank you! -- Dr. Tim Richter-Heitmann University of Bremen Microbial Ecophysiology Group (AG Friedrich) FB02 - Biologie/Chemie Leobener Straße (NW2 A2130) D-28359 Bremen Tel.: 0049

Re: [R-sig-eco] How to subsample a community dataset

nt sizes, I would like to standardize the number of species per locality before performing beta-diversity compositional analyses. Are you aware of any packages or functions that perform this task? Thank you very much in advance, Sincerely, Alexandre -- Tim Richter-He