R/weighted.MM.R

In hturner/gnm: Generalized Nonlinear Models

#  Copyright (C) 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/

weighted.MM <- function(resp, conc){
    list(predictors = list(Vm = substitute(conc), K = 1),
         variables = list(substitute(resp), substitute(conc)),
         term = function(predLabels, varLabels) {
             pred <- paste("(", predLabels[1], "/(", predLabels[2],
                           " + ", varLabels[2], "))", sep = "")
             pred <- paste("(", varLabels[1], " - ", pred, ")/sqrt(",
                           pred, ")", sep = "")
         })
}
class(weighted.MM) <- "nonlin"