Hi List: I am trying to estimate overlaps using the kerneloverlaphr function. The input objects are from estUDm class resulted from the BRB function. However, the overlap values seem odd, as low-overlapped "home ranges" had estimates as higher as the high-overlapped ones. Anyone can say what I am doing wrong? Following is an example:
#### library(adehabitatHR) x<- runif(100,1,2) y<-runif(100,1,2) x1<-runif(50,2,3) y1<-runif(50,2,3) z<- seq(1:150) x<-c(x,x1) y<-c(y,y1) xy <- as.matrix(data.frame(cbind(x,y))) id <- as.factor(c(rep(1,50),rep(2,50),rep(3,50))) class(z) <- "POSIXct" traject <- as.ltraj( xy, z, id, typeII=TRUE ) plot(traject) D <- BRB.D(traject, Tmax=100, Lmin=0.05) UD <- BRB(traject, D, tau=1, Tmax=100, Lmin=0.05, hmin=0.2) ## Biased random bridge contr1 <- getverticeshr(UD[[1]], lev =50) contr2 <- getverticeshr(UD[[2]], lev =50) contr3 <- getverticeshr(UD[[3]], lev =50) plot(contr1, col=rgb(0,0,0,0.2),xlim=c(0,3),ylim=c(0,3)) ## plot plot(contr2, add=TRUE, col=rgb(0,0,0,0.2)) plot(contr3, add=TRUE, col=rgb(0,0,0,0.2)) kerneloverlaphr(UD, method = "PHR") ## values seem wrong ### Thank you in advance. Guilherme -- Guilherme de Miranda Mourão Pesquisador A Laboratório de Vida Selvagem Embrapa Pantanal Corumbá MS [email protected] www.cpap.embrapa.br Fone: +55 67 3234-5929 Fax: +55 67 3234-5815 ____________________________________________________________________________ Aviso de confidencialidade Esta mensagem da Empresa Brasileira de Pesquisa Agropecuaria (Embrapa), empresa publica federal regida pelo disposto na Lei Federal no. 5.851, de 7 de dezembro de 1972, e enviada exclusivamente a seu destinatario e pode conter informacoes confidenciais, protegidas por sigilo profissional. Sua utilizacao desautorizada e ilegal e sujeita o infrator as penas da lei. Se voce a recebeu indevidamente, queira, por gentileza, reenvia-la ao emitente, esclarecendo o equivoco. Confidentiality note This message from Empresa Brasileira de Pesquisa Agropecuaria (Embrapa), a government company established under Brazilian law (5.851/72), is directed exclusively to its addressee and may contain confidential data, protected under professional secrecy rules. Its unauthorized use is illegal and may subject the transgressor to the law's penalties. If you are not the addressee, please send it back, elucidating the failure. _______________________________________________ AniMov mailing list [email protected] https://lists.faunalia.it/cgi-bin/mailman/listinfo/animov
