Revision d21d7df76446834d6a89c768064d8f0a2fef6714 authored by Deepayan Sarkar on 21 May 2005, 00:00:00 UTC, committed by Gabor Csardi on 21 May 2005, 00:00:00 UTC
1 parent 8deee61
make.groups.R
### Copyright (C) 2005 Deepayan Sarkar <Deepayan.Sarkar@R-project.org> and
###
### This file is part of the lattice library for R.
### It is made available under the terms of the GNU General Public
### License, version 2, or at your option, any later version,
### incorporated herein by reference.
###
### 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.
###
### You should have received a copy of the GNU General Public
### License along with this program; if not, write to the Free
### Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
### MA 02111-1307, USA
make.groups <- function(...)
{
tmp <- list(...)
nms <- as.character(substitute(list(...)))[-1]
if (is.null(names(tmp)))
names(tmp) <- nms
else
{
unnamed <- names(tmp) == ""
names(tmp)[unnamed] <- nms[unnamed]
}
data.frame(data = unlist(tmp),
which =
rep(gl(length(tmp), 1, labels = names(tmp)),
sapply(tmp, length)))
}
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