# Copyright (C) 2005, 2006 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/
labels.gnm <- function(object, ...) {
labels <- attr(terms(object), "term.labels")
termAssign <- attr(model.matrix(object), "assign")
if (length(object$constrain))
termAssign <- termAssign[-object$constrain]
unique(labels[termAssign])
}
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