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# 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
#' The generic Xpose functions for QQ plots
#'
#' This is a wrapper function for the lattice \code{\link[lattice]{qqmath}}
#' function.
#'
#'
#' @param x A string or a vector of strings with the name(s) of the
#' x-variable(s).
#' @param object An "xpose.data" object.
#' @param inclZeroWRES A logical value indicating whether rows with WRES=0
#' should be plotted.
#' @param onlyfirst A logical value indicating whether only the first row per
#' individual should be included in the plot.
#' @param samp An integer between 1 and object@Nsim
#' (see\code{\link{xpose.data-class}}) specifying which of the simulated data
#' sets to extract from SData.
#' @param aspect The aspect ratio of the display (see
#' \code{\link[lattice]{qqmath}}).
#' @param scales A list to be used for the \code{scales} argument in
#' \code{\link[lattice]{qqmath}}.
#' @param by A string or a vector of strings with the name(s) of the
#' conditioning variables.
#' @param force.by.factor Logical value. If TRUE, and \code{by} is not
#' \code{NULL}, the variable specified by \code{by} is taken as categorical.
#' @param ordby A string with the name of a variable to be used to reorder any
#' factor conditioning variables (\code{by}). The variable is used in a call to
#' the \code{reorder} function.
#' @param byordfun The name of the function to be used when reordering a factor
#' conditioning variable (see argument \code{ordby}).
#' @param shingnum The number of shingles ("parts") a continuous conditioning
#' variable should be divided into.
#' @param shingol The amount of overlap between adjacent shingles (see argument
#' \code{shingnum}).
#' @param strip The name of the function to be used as the strip argument to
#' the \code{\link[lattice]{xyplot}}.
#' @param subset A string giving the subset expression to be applied to the
#' data before plotting. See \code{\link{xsubset}}.
#' @param main A string giving the plot title or \code{NULL} if none.
#' @param xlb A string giving the label for the x-axis. \code{NULL} if none.
#' @param ylb A string giving the label for the y-axis. \code{NULL} if none.
#' @param pch Plotting symbol.
#' @param col Color of plotting symbol.
#' @param cex Amount to scale the plotting character by.
#' @param abllty Line type for qqline.
#' @param abllwd Line width for qqline.
#' @param ablcol Color for qqline.
#' @param mirror Should we create mirror plots from simulation data? Value can
#' be \code{FALSE}, \code{TRUE} or \code{1} for one mirror plot, or \code{3}
#' for three mirror plots.
#' @param max.plots.per.page The maximum number of plots per page that can be
#' created with the mirror plots.
#' @param mirror.aspect The aspect ratio of the plots used for mirror
#' functionality.
#' @param pass.plot.list Should we pass the list of plots created with mirror
#' or should we print them directly. Values can be \code{TRUE/FALSE}.
#' @param x.cex The size of the x-axis label.
#' @param y.cex The size of the y-axis label.
#' @param main.cex The size of the title.
#' @param mirror.internal an internal mirror argument used in
#' \code{\link{create.mirror}}. Checks if the \code{strip} argument from
#' \code{\link[lattice]{qqmath}} has been used.
#' @param \dots Other arguments passed to \code{\link{xpose.plot.qq}}.
#' @author E. Niclas Jonsson, Mats Karlsson, Andrew Hooker & Justin Wilkins
#' @seealso \code{\link{xpose.panel.qq}}, \code{\link[lattice]{qqmath}},
#' \code{\link[lattice]{panel.qqmathline}}, \code{\link{xpose.data-class}}
#' @keywords methods
#' @examples
#'
#' \dontrun{
#' ## xpdb5 is an Xpose data object
#' ## We expect to find the required NONMEM run and table files for run
#' ## 5 in the current working directory
#' xpdb5 <- xpose.data(5)
#'
#' ## A QQ plot of WRES
#' xpose.plot.qq("WRES", xpdb5)
#' }
#'
#'
#' @export xpose.plot.qq
xpose.plot.qq <-
function(x,object,
inclZeroWRES = FALSE,
onlyfirst = FALSE,
samp = NULL, ## Check if this is needed
aspect = object@Prefs@Graph.prefs$aspect,
scales = list(),
## Conditioning settings
by = object@Prefs@Graph.prefs$condvar,
force.by.factor = FALSE,
ordby = object@Prefs@Graph.prefs$ordby,
byordfun = object@Prefs@Graph.prefs$byordfun,
shingnum = object@Prefs@Graph.prefs$shingnum,
shingol = object@Prefs@Graph.prefs$shingol,
strip = function(...)
strip.default(...,strip.names=c(TRUE,TRUE)),
##par.strip.text=trellis.par.get("add.text"),
## Subset stuff
subset = xsubset(object),
## Axes and titles
main = xpose.create.title.hist(x,object,subset,...),
## main = NULL,
xlb = "Quantiles of Normal",
ylb = paste("Quantiles of ",xlabel(x,object),sep=""),
## Colors and stuff
pch=object@Prefs@Graph.prefs$pch,
col=object@Prefs@Graph.prefs$col,
cex=object@Prefs@Graph.prefs$cex,
abllty = object@Prefs@Graph.prefs$abllty,
abllwd = object@Prefs@Graph.prefs$abllwd,
ablcol = object@Prefs@Graph.prefs$ablcol,
## mirror stuff
mirror = FALSE,
max.plots.per.page=4,
mirror.aspect="fill",
pass.plot.list=FALSE,
x.cex=NULL,
y.cex=NULL,
main.cex=NULL,
mirror.internal=list(strip.missing=missing(strip)),
...) {
plotTitle <- main
## for MIRROR functionality
arg.list <- formals(xpose.plot.qq)
arg.names <- names(arg.list)
new.arg.list <- vector("list",length(arg.names))
names(new.arg.list) <- arg.names
for (argnam in arg.names){
if (argnam=="..."){
next
}
tmp <- get(argnam)
if (is.null(tmp)){
} else {
new.arg.list[[argnam]]=tmp
}
}
if (mirror){
create.mirror(xpose.plot.qq,
new.arg.list,mirror,plotTitle,...)
} else { # end if mirror
## x-label
#if(!is.null(x)) {
# if(length(x)> 1) {
# xlb <- NULL
# } else {
# xlb <- label(x,object)
# }
#}
## y-label
#ylb <- ylb
##Get data
if(!is.null(samp)) {
data <- SData(object,inclZeroWRES,onlyfirst=onlyfirst,
subset=subset,samp=samp)
} else {
data <- Data(object,inclZeroWRES,onlyfirst=onlyfirst,subset=subset)
}
## Strip "missing" data
data <- subset(data, get(x) != object@Prefs@Miss)
if(any(is.null(data))) return("The subset expression is invalid!")
## Make sure by is a factor if requested
if(!is.null(by) && force.by.factor) {
for(b in by) {
data[,b] <- as.factor(data[,b])
}
}
## Check to see if more that one x-variable
if(length(x) > 1) {
reps <-c(xvardef("id",object),xvardef("idlab",object),
xvardef("wres",object))
if(!is.null(by)) reps <- c(reps,by)
data <- xpose.stack(data,object,x,reps)
object <- new("xpose.data",
Runno=object@Runno,
Data = NULL)
Data(object) <- data
onlyfirst = FALSE
if(is.null(by)) {
by <- "ind"
} else {
by <- c("ind",by)
}
x <- "values"
scales=list(relation="free")
}
## Collect the basic plot formula
bb <- NULL
if(any(is.null(by))) { ## No conditioning
formel <- paste("~",x,sep="")
} else {
for(b in by) {
bb <- c(bb,xlabel(b,object))
if(!is.factor(data[,b])) {
data[,b] <- equal.count(data[,b],number=shingnum,overl=shingol)
} else {
if(any(!is.null(ordby))) {
data[,b] <- reorder(data[,b],data[,ordby],byordfun)
}
if(names(data[,b,drop=F])!="ind") {
levels(data[,b]) <-
paste(xlabel(names(data[,b,drop=F]),object),":", ## Needs to be fixed
levels(data[,b]),sep="")
}
}
}
bys <- paste(by,collapse="*")
formel <- paste("~",x,"|",bys,sep="")
}
if(missing(strip)) {
strip <- function(var.name,...)
strip.default(var.name=bb,strip.names=c(F,T),...)
}
#xvarnam <- x
if(!is.null(x.cex)) {
if (is.list(xlb)){
xlb$cex=x.cex
} else {
xlb <- list(xlb,cex=x.cex)
}
}
if(!is.null(y.cex)) {
if (is.list(ylb)){
ylb$cex=y.cex
} else {
ylb <- list(ylb,cex=y.cex)
}
}
if(is.null(main)) {
} else {
if(!is.null(main.cex)) {
if (is.list(main)){
main$cex=main.cex
} else {
main <- list(main,cex=main.cex)
}
}
}
xplot <- qqmath(formula(formel),
data,
obj=object,
#prepanel = function(x) {
# if(length(levs <- unique(x)) < object@Prefs@Cat.levels) {
# xlim <- as.character(sort(levs))
# return(list(xlim=xlim))
# } else {
# xlim <- range(x)
# return(list(xlim=xlim))
# }
#},
panel=xpose.panel.qq,
aspect=aspect,
ylab=ylb,
xlab=xlb,
scales=scales,
main=main,
#xvarnam=xvarnam,
abllty = abllty,
abllwd = abllwd,
ablcol = ablcol,
#border = hiborder,
pch=pch,
col=col,
cex=cex,
strip=strip,
...)
return(xplot)
}
}
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