R/Const.R

In hturner/gnm: Generalized Nonlinear Models

#  Copyright (C) 2006, 2008 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/

Const <- function(const) {
    badCall <- !"nonlinTerms" %in% lapply(sys.calls(), "[[", 1)
    if (any(badCall))
        stop("Const terms are only valid in the predictors of \"nonlin\" ",
             "functions.")
    call("rep", substitute(const), quote(nObs))
}