search for: permanova

Displaying 8 results from an estimated 8 matches for "permanova".

2010 Aug 09
0
permanova on MICE object
Hi everyone! I have data consisting of several response variables and several explanatory variables. I wish to do a permanova on this using the vegan library and the adonis() function. However, my data had several missing values in it. In order to 'fix' this I used the mice() function from the mice library to make 5 imputations for all the missing values. To do analysis on the 5 datasets with different imputed val...
2012 Feb 02
0
Two-Way PERMANOVA with Repeated Measurements
Hello, I want to perform a permanova where the first factor called Treatment has four levels. The second factor involves sampling the same research plots for four consecutive years, hence the repeated measurements. I have been able to use the adonis function from the package vegan to run this analysis. code below: TC.perMANOVA.adoni...
2011 Sep 09
2
NMDS plot and Adonis (PerMANOVA) of community composition with presence absence and relative intensity
Hi! Thanks for providing great help in R-related statistics. Now, however I'm stuck. I'm not a statistics person but I was recommended to use R to perform a nmds plot and PerMANOVA of my dataset. Sample(treatment) in the columns and species (OTU) in the rows. I have 4 treatments (Ambient Temperature, Ambient temperature+Low pH, High temperature, High temperature+low pH), and I have 16 different species (OTUs). Firstly I want to make a nmds plot and see how different the tre...
2010 Mar 16
1
memory failure in adonis function (permanova)
Dear all, I am trying to get a PERMANOVA with quite large data set. I am reading a lot about this question, but I do not get the answer about it. Although I know that the R function is adonis () (vegan package), it does not work: adonis(Pha.env~SPha, data=Pha, permutations=10) The error message: Error: cannot allocate vector of size 33...
2011 Sep 12
0
PerMANOVA of community data
Hi! How can I make a PerMANOVA in R comparing treatments in a matrix that looks something like this: Treatment 1 Treatment 2 Treatment 3 Species 1 0.6 0.2 0 Species 2 0 0.7 0.3 Species 3 0 0.5...
2013 Jul 10
0
permanova for multivariate repeat measures toxicology data set
Hello, I would like to use a permanova to analyze my repeated measures, multivariate data set using the package vegan (adonis function). I have several explanatory variables and many clinical biochemistry/hematological response variables (all continuous, non-normally distributed). My explanatory variables are: ID - 29 levels - indivi...
2011 Jul 09
1
PERMANOVA+ and adonis in vegan package
Hi, I was wondering if someone can tell me what is the difference between "strata" argument (function "adonis" in "vegan" package) and using random effects in PERMANOVA+ add-on package to PRIMER6 when doing permutational MANOVA-s? Is the way permutations are done the same? Thank you very much in advance, Vesna -- View this message in context: http://r.789695.n4.nabble.com/PERMANOVA-and-adonis-in-vegan-package-tp3656397p3656397.html Sent from the R help mailing...
2023 Apr 26
2
Analisis multivariante con Primer
Hola amigos: Quisiera saber si alguna opción en R del software primer para análisis de datos multivariantes en ecología Gracias Javier [[alternative HTML version deleted]]