# Copyright (C) 2005 David Firth and Heather Turner
#
# 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 or 3 of the License
# (at your option).
#
# 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/
unlistOneLevel <- function(theList){
result <- vector(length = sum(vapply(theList,
function(x) if(is.list(x)) length(x) else 1, 1)),
mode = "list")
count <- 0
for (i in seq(theList)){
theItem <- theList[[i]]
if (is.list(theItem)){
for (j in seq(theItem)){
count <- count + 1
result[[count]] <- theItem[[j]]
}
}
else {
count <- count + 1
result[[count]] <- theItem
}
}
return(result[1:count])
}
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