search for: biologiqu

...uate argument for cbind: cbind(afunction(ncomma)) Is there in R a function that can do the job ? If not, how can I do it ?? Thanks in advance, Sincerely. St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

...o not know how to "mix" the values in aa to obtain the desired values. Is there a way to do it without for loop ? Thanks in advances, sincerely St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : (514) 343-6111 poste 1233 Fax : (514) 343-2293 E-mail : stephane.dray at umontreal.ca --------------------------------------------------------------------------------------------------...

...are real ? And what is the conditions to ensure that eigenvectors are real in the case of an asymmetric matrix (if some conditions exist)? Thanks in Advance, St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

...solve the problem, or a reference on this kind of question or the email of another list where I should ask this question. Thanks in advance, Sincerely. St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

...RMA regression, abline(lmodel2(x~y))does not do it. If somebody knows how to do it, it would be a great relief !! Best wishes, JL Jean-Louis Hemptinne PR Ecologie et Didactique de l'Ecologie Universit? de Toulouse - Ecole nationale de Formation agronomique UMR CNRS 5174 Evolution et Diversit? biologique BP 22687 F-31326 Castanet-Tolosan Cedex Tel : (+33)0561753295 Fax : (+33)0561750309

...ot know how to make the model selection. Since the AIC and log-likelihood are apparently meaningless, how can we select the parameters for a model and compare the models to find which one fits best the data? Thanks a lot Emmanuelle Tastard Emmanuelle TASTARD UMR 5174 'Evolution et Diversité Biologique' Université Paul Sabatier Bat 4R3 31062 TOULOUSE CEDEX 9 France tel : 05 61 55 67 59 [[alternative HTML version deleted]]

...the case of uniform weights, qr can do the trick. I wonder if there is a way to do it in the case of non uniform weights by qr or svd ? Thanks in advances. St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

...does it says that 'K_MEANSC' function is not in load table??? It then just stops at that stage of the .R function. Thank you all for your time, Marie-Hélène ========================================================== Marie-Hélène Ouellette UNIVERSITE DE MONTRÉAL Département de sciences biologiques Tél. (514) 343-6111 poste 1233 ========================================================= [[alternative HTML version deleted]]

..., substrate) = f_ox*(1-f_inox) I want to replace f_ox*(1-f_inox) by 0.1 Further more, I can not manage to understand the formula type, which I guess would correspond to the kind of things I am dealing with. Would you have any clue or insights on this? Pascal Boisson Assainissement - Traitement Biologique Veolia Environnement - Centre de Recherche sur l'Eau Anjou Recherche Chemin de la Digue - BP 76 78603 Maisons Laffitte Cedex Tel. :? +33 (0)1 34 93 81 44 Fax. : +33 (0)1 34 93 31 10 pascal.boisson at veolia.com ? Please consider your environmental responsibility before printing this e-mail __...

...platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 1 minor 8.1 year 2003 month 11 day 21 language R St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

...uot; "o" "t" "y" [15,] "E" "J" "O" "T" "Y" > Thanks in advance ! St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

I am not sure a previous e-mail reached the list (no mail aknowledgement from R-boundle etc.). The question was how to write polygon or segment coordinates into a shapefile set or any other ArcGIS supported format. The library shapefiles seems to do something but the documentation is a bit beyond of my mind.... and I cannot get the meaning of the functions write**** and its application to the case

...sing the RSAGA package provide some help in telling me what I did wrong? Thanks for your help, Am?lie -- -------------------------------------------------------------------------------------------------------------------------------- *Am?lie Lescro?l* Postdoc - Seabird ecology Centre d?Etudes Biologiques de Chiz? ? 79360 Villiers en Bois ? France *_http://www.cebc.cnrs.fr/Fidentite/lescroel/lescroel.htm_* *_http://www.cebc.cnrs.fr/ecomm/En_ecomm/En_index.html_* *_http://www.penguinscience.com_* <http://www.penguinscience.com/> -------------------------------------------------------------...

Dear All, I am using the scatter.dudi finction in the 'ade4' package to produce correspondence analysis (nice) plots. I do not seem to figure out how to plot the raw coordinates only -- or column coordinates only. I would appreciate any help in doing that. Here is the example I am following -- from the package. data(banque) > banque.acm <- dudi.acm(banque, scann = FALSE, nf =

...t matures. J'ai choisi d'utiliser les GEE pour repondre a ma question... est-ce le meilleur modele pour ca ? Si oui faut-il considerer les annees comme clusters ou bien les femelles ? comment specifier le "correlation link" ? merci de votre aide Laurent Association TAKH Station Biologique Tour du Valat 13200 ARLES France web site: www.tourduvalat.org ------------------------------------------------------------- NetCourrier, votre bureau virtuel sur Internet : Mail, Agenda, Clubs, Toolbar... Web/Wap : www.netcourrier.com T?l?phone/Fax : 08 92 69 00 21 (0,34 TTC/min) Minitel: 3615...

How can I add a color bar to show the color scales to what is generated by image(), similar to the one in figures generated by filled.contour()? Thanks. Y. C. Tao

Does R have a function to calculate Bray-Curtis distance measures, which is probably one of the most frequently used and recommended dissimilarity measures in ecology? It isn't mentioned in dist().

Bonjour à tous, Je débute dans l'utilisation de R, et suis à la recherche de toute piste me permettant l'introduction à ce logiciel. J'ai pour le moment la fiche d'Emmanuel Paradis: "R pour les débutants", mais j'aimerais savoir où je peut trouver d'autres documentations notamment pour le traitement statistique de données (Anova, modèle linéaire et modèle

...ead the previous discussion on this list "do.call and environment") but can not find how to solve it. Hope that somebody can help me, Sincerely. St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca -------------------------------------------------------------------------------------------------- Web...

Hello I have some kind of problem with R. I want to do a pca (I work on R and ade4 library) but R doesn't wan to realize my pca because of my data: I have some binary variable (presence/absence of birds, hole, vegetals...) and metric variable (cliff 's size...) and each time I have an error message because of the mix of the 2 type of variable. So, what can I do? Famille SALMON