Re: [R-sig-eco] SPEI index

2014-12-23 Thread Alexandre Villers
818 > Mail: manuelesteban.lu...@uclm.es > Web:http://www.uclm.es/profesorado/manuelestebanlucas/ > > > El 23/12/2014, a las 09:31, Alexandre Villers > escribió: > > Hello > > There are some nice tutorial on the Internet which will help you with r > basics. Do not ex

Re: [R-sig-eco] package for intra- and interspecific aggregation

2013-07-17 Thread Alexandre Villers
; [[alternative HTML version deleted]] > > ___ > R-sig-ecology mailing list > R-sig-ecology@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-ecology -- Alexandre Villers, PhD. Postdoctoral researcher Section of Ecology Univer

Re: [R-sig-eco] measure of segregation

2013-03-11 Thread Alexandre Villers
also the package dixon, which implements > Dixon's meassure of spatial segregation( Dixon, P.M. 2002. > Nearest-neighbor contingency table analysis of spatial segregation for > several species. /Ecoscience/, *9*: 142-151). > > HTH, > > Marcelino > > > El 10/03/2013

Re: [R-sig-eco] measure of segregation

2013-03-10 Thread Alexandre Villers
for a statistical > measure of segregation? Can anyone suggest a suitable measure? > > Thanks > Ross > > > > > [[alternative HTML version deleted]] > > > > ___________ > R-sig-ecology mailing list > R-sig-ecology@r-projec

Re: [R-sig-eco] Model for zero-inflated species abundance data, allowing for spatial autocorrelation?

2012-02-14 Thread Alexandre Villers
I answered by mistake on the R SIG GEO sorry for cross posting. - Hi, If you are not afraid to switch to Bayesian methods (but fast ones !), the INLA package could do that for you. ( www.r-inla.org ) Cheers Alex On 14/

[R-sig-eco] number of pixels in a circular window for GRASS r.neighbors function

2011-10-12 Thread Alexandre Villers
Dear list, I have calculated the number of pixels whose value=1 for different radii using the r.neighbors function (method= circular, function=sum). I would like to compute the proportion of cells with this value and for that, I'm trying to figure out the effective number of pixels that are us

[R-sig-eco] can not load BRugs

2011-04-07 Thread Alexandre Villers
Hey, It is just a quick technical question. I was hoping that one of you could confirm me that BRugs (package for running OpenBUGS model) was running with windows 7 -64 bits? I have a registry problem which seems to prevent me from loading the library and I suspect it might come from admin ri

Re: [R-sig-eco] correlated residuals

2011-03-31 Thread Alexandre Villers
IGNED MESSAGE- > Hash: SHA1 > > On 11-03-31 03:05 AM, Alexandre Villers wrote: >> Good morning, >> >> I'm trying to fit a very simple model: the proportion of occupied nest >> boxes according to food availability on a time serie (37 years). The >> proble

[R-sig-eco] correlated residuals

2011-03-31 Thread Alexandre Villers
Good morning, I'm trying to fit a very simple model: the proportion of occupied nest boxes according to food availability on a time serie (37 years). The problem is that the glm (binomial error family with logit link) presents a marked overdispersion ( ~ 24). Checking the residuals showed me

Re: [R-sig-eco] Help with nonlinear population trends & binomialregression

2010-12-17 Thread Alexandre Villers
ailman/listinfo/r-sig-ecology -- Alexandre Villers, PhD. Postdoc researcher Spatial Ecology & Population Dynamics Section of Ecology, Department of Biology University of Turku FIN-20014 Turku Finland @mail: alexandre.vill...@utu.fi phone: 00358 (0)2 333 5039 Skype You can skype me

Re: [R-sig-eco] Help with package adehabitat

2009-12-15 Thread Alexandre VILLERS
http://www.eset.com -- Alexandre Villers PhD Candidate AgriPop Centre d'Etudes Biologiques de Chizé-CNRS UPR1934 79360 Beauvoir sur Niort Phone +33 (0)5 49 09 96 13 Fax +33 (0)5 49 09 65 26 __ Information from ESET Mail Security, version of virus signature database 4688 (20091215) __

[R-sig-eco] creating cluster with between points arbitrary distances

2009-12-09 Thread alexandre villers
t;red", "black"), pch=c(16,16,16,16)) # red points belong to the same cluster while the black doesn't Alexandre Villers PhD. Candidate Team Agripop CEBC CNRS UPR 1934 79360 Beauvoir sur Niort Phone: +33 (0)549 099 613 __ Information from ESET Mail Security, version of

[R-sig-eco] Producing ENFA derived suitability maps with adehabitat

2009-09-07 Thread Alexandre VILLERS
he result of an ENFA on a "new" landscape... Any link or help would be welcome. Alex -- Alexandre Villers PhD Student Team "Biodiversity" Centre d'Etudes Biologiques de Chizé-CNRS UPR1934 79360 Beauvoir sur Niort Phone +33 (0)5 49 09 96 13 Fax +33 (0)5 49 09 65 26