Hi all, I tried to export 2 millions trees to a .tre file with write.tree. This never ends, thus i tried to get why and realized that the time to write the .tre depends exponentially on the number of trees.
trees<-allTrees(9,rooted=T)to<-seq(10000,2000000,10000)durations<-NAfor(i in 1:length(to)) { ptm <- proc.time() write.tree(trees[1:to[i]], file = "test.tre") durations[i]<-(proc.time() - ptm)[3]} I do not really get why it is not nearly linear. Any explanation? Cheers, Jérémie ---- Jérémie Bardin, Dr. CR2P - Centre de Recherche en Paléontologie - ParisSorbonne Université - MNHN - CNRS Site Jussieu, Tour 46-56, 5°et. 4 place Jussieu, 75252 Paris Cedex 05 tel. +331.44.27.51.77. jeremie.bar...@upmc.fr / jbar...@mnhn.fr / jeremiebar...@yahoo.fr [[alternative HTML version deleted]] _______________________________________________ R-sig-phylo mailing list - R-sig-phylo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-phylo Searchable archive at http://www.mail-archive.com/r-sig-phylo@r-project.org/