# Xpose 4
# An R-based population pharmacokinetic/
# pharmacodynamic model building aid for NONMEM.
# Copyright (C) 1998-2004 E. Niclas Jonsson and Mats Karlsson.
# Copyright (C) 2005-2008 Andrew C. Hooker, Justin J. Wilkins,
# Mats O. Karlsson and E. Niclas Jonsson.
# Copyright (C) 2009-2010 Andrew C. Hooker, Mats O. Karlsson and
# E. Niclas Jonsson.
# This file is a part of Xpose 4.
# Xpose 4 is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation, either version 3
# of the License, or (at your option) any later version.
# 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 Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with this program. A copy can be cound in the R installation
# directory under \share\licenses. If not, see http://www.gnu.org/licenses/.
## Added by Justin Wilkins
## 28/11/2005
#' Quantile-quantile plot of individual weighted residuals (IWRES), for Xpose 4
#'
#' This is a QQ plot of the distribution of individual weighted residuals
#' (IWRES) in the dataset, a specific function in Xpose 4. It is a wrapper
#' encapsulating arguments to the \code{xpose.plot.qq} function.
#'
#' Displays a QQ plot of the individual weighted residuals (IWRES).
#'
#' @param object An xpose.data object.
#' @param \dots Other arguments passed to \code{link{xpose.plot.qq}}.
#' @return Returns a QQ plot of individual weighted residuals (IWRES).
#' @author E. Niclas Jonsson, Mats Karlsson, Andrew Hooker & Justin Wilkins
#' @seealso \code{\link{xpose.plot.qq}}, \code{\link{xpose.panel.qq}},
#' \code{\link[lattice]{qqmath}}, \code{\link{xpose.prefs-class}},
#' \code{\link{xpose.data-class}}
#' @keywords methods
#' @examples
#' iwres.dist.qq(simpraz.xpdb)
#'
#' @export iwres.dist.qq
#' @family specific functions
"iwres.dist.qq" <-
function(object,
...) {
## Make sure we have the necessary variables defined
if(is.null(check.vars(c("iwres"),object))) {
return(NULL)
}
xplot <- xpose.plot.qq(xvardef("iwres",object),
object,
...)
return(xplot)
}
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