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Hello, I am wondering if it is possible to conduct a Mantel test or any similar test in order to relate an asymmetric species x species matrix to a symmetric matrix (e.g. phylogenetic distance...
30 May 2017 5,583 1 View
Hi, this is the error I keep having when running this commandline: mantel.rtest(as.dist(m1), as.dist(m2)) m1is the genetic distance and m2 is the geographic dist. Both matrices were generated with...
23 May 2017 3,337 1 View
Hi everybody, Do you have the paper of Van-Rooy with this title: A rainfall anomaly index independent of time and space. Notes. 14: 24-43. I've searched in the net, however I can't find it. Could...
22 May 2017 4,135 2 View
Hi Dears Can I use TWINSPAN for species - trait matrix?
13 May 2017 8,728 3 View
I would like to calculate SPEI using the R package developed by the authors. There seems to me to be two major reasons why I can't use the R package (I'm currently trying to figure out SPEI in...
11 May 2017 10,147 2 View
Hi, are there any software or R package that can be used to conduct Random Forest analysis?
10 May 2017 2,549 2 View
I have generated a Maxent model for species distribution using only presence points. I need to evaluate the model and I don't know How to calculate the AUC values manually. I heard that the AUC...
08 May 2017 7,339 4 View
Preferably software to generate network relationship with gene-absence-presence data (binary) will be convenient.
05 May 2017 9,499 1 View
I was plotting some results when I realized that the coefficients shown by GGplot differ from the model I've tested. It shows the 2 models (m2 and m3) separately. Note that the coefficients change...
03 May 2017 7,019 2 View
I have access to raw surface and atmospheric variables from a set of already run simulations using WRF through NA-CORDEX. That simulation was run at 50 km resolution. I am seeking to downscale...
25 April 2017 8,109 2 View
I have made my tree like this...but unable to add node values...please give me the commands...here is what I have done in rstudio in simple way from clustal alignment... >...
24 April 2017 9,413 2 View
Hi, Can anyone please clarify me. The difference between ChiSq value and Std. Error during EIS Equivalent Circuit Modeling through ZSimpWin Software. Please Check the picture attached. Best...
23 April 2017 1,399 3 View
Dear all, I have developed an R package here https://github.com/ibarraespinosa/vein This package depends on sp but it works with simpler classes. Mi intention is to create classes but i would like...
22 April 2017 2,703 2 View
I have tried using the function code ,cbind to re-order but does not work in my case. I am trying to organised moon phases according to their pattern as 1st, Full, 3rd, New. I got fish abundance...
14 April 2017 9,825 3 View
Dear Maxent users, I also have just started playing with this new version of Maxent. As a default, running Maxent 3.4 with dismo gives raw, cumulative and Cloglog predictions (I am talking about...
11 April 2017 8,086 3 View
I am trying to learn the phylogenetics in rstudio. But problem is that I am unable to understand the commands in the packages like ape or phangorn. Please anyone tell me the simple steps to do...
10 April 2017 955 10 View
Hi, I am trying to select most stable reference gene by use of gNorm and NormFinder algorithm of NormqPCR package. I had no problem when I use gNorm but when I want to use NormFinder it say "1....
08 April 2017 8,918 1 View
How to plot (in R) a binomial GLMM with a proportional response variable [analyzed using cbind(Successes, Failures)], and a continuous fixed factor?
08 April 2017 5,388 3 View
I used STRUCTURE to look at the relationship between 28 localities representing 572 individuals, followed by CLUMPP and DISTRUCT for windows. My problem, however, is that I cannot visualize the...
06 April 2017 4,923 3 View
I want to calculate the distance matrix of a phylogenetic tree which is stored in R as a class “large phylo”. This tree have 23197 tips. when I use cophenetic() to calculate the distance matrix, a...
05 April 2017 8,513 2 View
I'm looking for a equation of ARL of EWMA chart and to be easy calculate it by manually.
04 April 2017 9,663 2 View
I am trying moderating effects in a structural equation model, where the moderating variable is also a latent variable. I am using "R" as the software tool. Unfortunately, I could not create a...
02 April 2017 176 8 View
i have built two models based on same data. one model shows me negative AIC,another shows me positive. so i should always take the negative one? by the way, one is glmer(poisson), one is lmer....
27 March 2017 9,015 3 View
Say I have some data with observations of individuals with different treatment. I can test whether the treatments affect the observations with an ANOVA test. But now I want to find out whether the...
27 March 2017 5,003 2 View