How can I perform Phylogenetic Principle Component Analysis (pPCA) on my data?

How can I perform Phylogenetic Principle Component Analysis (pPCA) on my data, using phylogenetic trees with branch lengths, using R? I have 22 species with their phylogenetic tree and 14 traits...

07 August 2018 7,224 3 View

How can I measure the residual of the trait values?

I want to compare evolution rate between two set of data (morphological and reproductive traits) because the values of the reproductive traits is very small in compare with morphological traits...

04 May 2017 2,016 2 View

Can any one help me to solve the below error in R (ape)?

03 April 2016 3,181 2 View

Hi everyone, I need to use PGLS, for studying evolution of Platycheirus spp.?

02 March 2016 8,544 2 View

How can I study the evolutionary relationships among a 22 species of insects of the same genus?

hello everyone ! I got a question about trait evolution analysis.I have COI (Cytochrome oxidase I) DNA sequences for all species, and I have excel sheet for all morphological characters for all...

02 March 2016 928 10 View

I need to use R software (ape package) for studying biological evolution of Platycheirus sp. ?

I have the DNA sequence of 20 species, and the data for all characters of these species like (thorax volume, proboscis length, wings and legs length, abdomen length, ........ect), my question is...

01 February 2016 5,708 3 View

How evolution of species behavior are studied through phylogeny of certain species of insects?

I need to study the evolution of insects behavior through phylogeny?

31 December 2015 9,345 0 View

I every one, I have some sequences in notepad format, I need to build tree from it, anybody know how can I change it to Fasta format?

hi every one

31 December 2015 5,662 0 View

What is the best way for estimating evolution rate between morphological and reproductive characters?

01 January 1970 5,943 6 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View