search for: chiroleu

...e vector of standard deviations of initial variables when you choose "normed" PCA and the vector of standard deviations of normed variables, ie 1, when you choose non "normed" PCA. We contacted authors of the package unsuccessly to rectify the information. -- Dr. Fr?d?ric Chiroleu Biom?tricien CIRAD-Syst?mes Biologiques (Cirad-Bios) UMR 53 PVBMT (Peuplements V?g?taux et Bio-agresseurs en Milieu Tropical) Laboratoire d'Ecologie Terrestre et de Lutte Int?gr?e (LETLI) P?le de Protection des Plantes (3P) 7, chemin de l'IRAT Ligne Paradis 97410 Saint-Pierre ?le de la R?un...

...t corrected (2* a_b_c, ie 2*(a+b+c) in the code instead of 2*a +b + c !!!). After our mail to R-help (21/11/2006), we thought the authors could do something but I just try the function and the error is still there. I hope the authors will read my mail. Sincerely yours, Fred. -- Dr. Fr?d?ric Chiroleu Biom?tricien UMR 53 PVBMT (Peuplements V?g?taux et Bio-agresseurs en Milieu Tropical) CIRAD-AMIS P?le de Protection des Plantes (3P) Laboratoire d'?cologie Terrestre et de Lutte Int?gr?e (LETLI) 7, chemin de l'IRAT Ligne Paradis 97410 Saint-Pierre ?le de la R?union - France T?l. : 02 62 49...

...main effects) using Dunn-Sidak method. We tried to use the glht() function (from multcomp package) without success because of the nature of manova() object. Has someone an helpful advice to give ? Merci beaucoup, (Thanks a lot) Bien cordialement, (Sincerely yours) Fr?d?ric. -- Dr. Fr?d?ric Chiroleu Biom?tricien CIRAD-Syst?mes Biologiques (Cirad-Bios) UMR 53 PVBMT (Peuplements V?g?taux et Bio-agresseurs en Milieu Tropical) Laboratoire d'Ecologie Terrestre et de Lutte Int?gr?e (LETLI) P?le de Protection des Plantes (3P) 7, chemin de l'IRAT - Ligne Paradis 97410 Saint-Pierre ?le de la R?...

...F-value - from the "aov" function and the "lme" one (oppositely to the example used by Venables & Ripley and Pinheiro & Bates). Is there a mistake in one of our two models or an explanation of this difference? Thanks a lot in advance. Caroline Domerg and Frederic Chiroleu UMR 53 PVBMT (Peuplements Vegetaux et Bio-agresseurs en Milieu Tropical) CIRAD P?le de Protection des Plantes (3P) - Saint-Pierre Ile de la R?union

...one have the original definition given in the Lance & Williams paper from Aust. Comput. J. 1, 15-20, 1967? When there are zeros at certain position in both vectors, they are not omitted as documented in the function (see below). Instead, Canberra distance is calculated as described in Frédéric Chiroleu's post ( http://tolstoy.newcastle.edu.au/R/e3/help/07/10/1370.html ) d(x,y) = (NZ + 1)/NZ * sum(abs(x-y)/(x+y)), where NZ is the number of none-zero positions. This can also be seen from the example given in the document for stats::dist (see below). However, when there is no such a position whe...