# File src/library/base/R/structure.R # Part of the R package, http://www.R-project.org # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # A copy of the GNU General Public License is available at # http://www.r-project.org/Licenses/ ## This remaps special names as they are used by deparsing, but why are they? ## structure <- function (.Data, ...) { attrib <- list(...) if(length(attrib)) { specials <- c(".Dim", ".Dimnames", ".Names", ".Tsp", ".Label") replace <- c("dim", "dimnames", "names", "tsp", "levels") m <- match(names(attrib), specials) ok <- (!is.na(m) & m) names(attrib)[ok] <- replace[m[ok]] ## prior to 2.5.0 factors would deparse to double codes if("factor" %in% attrib[["class", exact = TRUE]] && typeof(.Data) == "double") storage.mode(.Data) <- "integer" attributes(.Data) <- c(attributes(.Data), attrib) } return(.Data) }