similar to: Binding dataframe with different length in rows and columns

Hello alls, I found in the literature a technique that has been evaluated as one of the more robust to assess statistically the significance of the loadings in a PCA: bootstrapping the eigenvector (Jackson, Ecology 1993, 74: 2204-2214; Peres-Neto and al. 2003. Ecology 84:2347-2363). However, I'm not able to transform by myself the following steps into a R program, yet? Can someone could help

Dear alls, Could someone tell me how to select a subset of string observations (e.g. "females" in a sex column) with sqlQuery in the RODBC library? Indeed, I'm trying to select a subset of observations on my access database with: female<-sqlQuery(mychannel,"SELECT Micromammiferes.sex FROM Micromammiferes WHERE (((Micromammiferes.sex)="females"));") The sql

Dear all, I ran the following model without any problem previously to the update of lme4: fm2<-lmer(data=NGud,family=poisson, seed~hab*seedtray +(1|site)+(1|site:hab)) I have 25 sites, 2 habitats ("hab") per site, 8 seedtrays per habitat (4 as control, and 4 as treatment), and I'm interested in comparing the number of seed in seedtrays as a function of the treatment and its

Dear all, I'm building binomial mixed-model using lme4 package. I'm able to obtain outputs properly except when I include two particular variables: date (from 23 to 34; 1 being to first sampling day) and Latitude (UTM/100 000, from 55.42 to 56.53). No "NA" is any of those variables. In those cases, I get the warning message: "nlminb failed to converge" I tried to

Dear R useRs, I have a problem with nls.lm function of minpackl.lm package. I need to fit the Van Genuchten Model to a set of data of Theta and hydraulic conductivity with nls.lm function of minpack.lm package. For the first fit, the parameter estimates keep changing even after 1000 iterations (Th) and I have a following error message for fit of hydraulic conductivity (k); Reason for

Dear all, I'm doing univariate Poisson regressions using the "glm" and "glm.fit" functions. I have 5 independent datasets and each dataset, has one response variable and more than 20 factors to test. Currently, I run one regression at a time and manually take notes of the results in excel to have a quick overview on what is going on in my data. My poor method is very

Dear all, I get an error message when I run my model and I am not sure what to do about it. I try to determine what factors influence the survival of voles. I use a mixed-model because I have several voles per site (varying from 2 to 19 voles). Here is the model: ### fm5 <-lmer(data=cdrgsaou2, alive~factor(pacut)+factor(agecamp)+factor(sex)+ResCondCorp+(1|factor(cdrgsa ou2$ids)),

On 05/03/2015 6:16 PM, Brian G. Peterson wrote: > On Thu, 2015-03-05 at 18:03 -0500, Etienne Lord wrote: >> Hi, >> >> I'm trying to submit my first package which depends on doParallel: >> >> Depends: R (>= 3.0), igraph, doParallel > > add foreach to your Depends. That should resolve the error you're > seeing. Please don't do that. Use

Bonjour, Je suis ?tudiant stagiaire ? Paris et je rencontre quelques difficult?s en programmation R. J'ai une data frame compos?e de 4 colonnes et 250 lignes et dont chaque ligne est une famille. J'ai fait un tirage al?atoire avec remise des familles 250 fois ce qui m'am?ne ? une nouvelle dataframe. A cette nouvelle dataframe, j'applique un programme qui calcule 2 param?tre X1

A monsieur Andrew Je suis ?tudiant en fin de cycle de formation en infomatique ? l'institut Africain d'informatique de Libreville.J'?tais sur vos sites et je suis persuad?s que vous ?tes la personne la bien plac?e pour m'orienter et m'aider sur un sujet concernant "l'authentification linux des sessions windows".Ainsi on me demande de concevoir et de mettre en

Hello, Rather new to RoR, so I''m not sure about the terminology and such :-/ . My question is: how could I know the model which is associated to a controller? For example: - controller class is TestController, which is a subclass of ApplicationController - associated model class is Test How could I write some code in a method of ApplicationController to dermine the current

Hello, How can I pass a hash as parameter from a template with url_for? e.g. : if I have test = { :a => "a", :b => "b" } How can I pass that with my request? Is it possible to pass nested hash''es to? Right now, url_for :action => :test, test doesn''t seem to work. Thank you, --

Hello, I have a People table and a Addresses table. A person can have one or more addresses, but should at least have one, so there is a address_id field in People. Now, I would like to have a form to fill the name of a new person and its address from the same place. I could use person.address.country, for example (it works), but I would like to simply use person.country for some reasons

Hello, It seems I need to restart webrick everytime I modify a module in order for my modifications to be taken into account. Is this normal and is there a workaround? Regards, -- ---------------------------------------------------------------------- Yannick Majoros http://www.inma.ucl.ac.be/~majoros Informaticien UCL/INMA-MEMA 4, avenue G. Lema?tre B-1348 Louvain-la-Neuve Tel:

Thanks for the quick reply. Adding all the dependencies of doParallel (foreach, parallel, iterators) in the DESCRIPTION and in import statements in NAMESPACE resolved the build_win problems. Don't know why this is required for Windows build. Thanks again. 2015-03-05 18:22 GMT-05:00 Duncan Murdoch <murdoch.duncan at gmail.com>: > On 05/03/2015 6:16 PM, Brian G. Peterson wrote: >

Hello, Here is the description of a problem we habe been having for some time. Originally posted on the postfix-users mailing list, but no solution found to date. >>>> We have been having problems with our mail system for a couple of >>>> months. Every now and then, some mailboxes get corrupted: a >>>> half-truncated message, usually without headers, is at

Hello, I always have the same kind of design problem, which I am not sure how to solve correctly: - say I have a variable, "status", which I want to calculate once in my controller, and access a couple of times in my view - "status" variable initialization could happen in a subclass, overriding the regular method for that What I do now is using an instance variable

One more question: Is there some way to set the human_name of a column? e.g.: human_name for column address1 shouldn''t be Address1 but "Address, line 1". If not, should I make a hash with my custom names? Best regards, -- ---------------------------------------------------------------------- Yannick Majoros http://www.inma.ucl.ac.be/~majoros Informaticien UCL/INMA-MEMA

G'Day R users! Following an ordination using prcomp, I'd like to test which variables singnificantly contribute to a principal component. There is a method suggested by Peres-Neto and al. 2003. Ecology 84:2347-2363 called "bootstrapped eigenvector". It was asked for that in this forum in January 2005 by J?r?me Lema?tre: "1) Resample 1000 times with replacement entire

Dear all, I am trying to merge two data frames based on a common column but for this common column both data frame do not have the same length and associated information. I checked previous exemples in the list but was not able to apply them in my case... Is someone know how to do that? Below is my code with the expected result: # data frame 1 Id1 <- c(1,1,1,2,2,2,3,3,3) Habit1 <-