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#
# plot.fasp.R
#
# $Revision: 1.34 $ $Date: 2025/12/23 01:10:49 $
#
plot.fasp <- function(x, formule=NULL, ..., subset=NULL,
title=NULL, banner=TRUE,
transpose=FALSE,
samex=FALSE, samey=FALSE,
mar.panel=NULL,
outerlabels=TRUE, cex.outerlabels=1.25,
legend=FALSE) {
do.plot <- !isFALSE(list(...)$do.plot)
#' dimensions of array of plot panels
which <- x$which
if(transpose)
which <- t(which)
nrows <- nrow(which)
ncols <- ncol(which)
#' Determine the overall title of the plot
if(banner) {
if(!is.null(title)) overall <- title
else if(!is.null(x$title)) overall <- x$title
else {
if(prod(dim(which)) > 1)
overall <- "Array of diagnostic functions"
else
overall <- "Diagnostic function"
if(is.null(x$dataname)) overall <- paste(overall,".",sep="")
else overall <- paste(overall," for ",x$dataname,".",sep="")
}
if(length(overall) > 1)
overall <- paste(overall, collapse="\n")
nlines <-
if(!is.character(overall)) 1 else length(unlist(strsplit(overall, "\n")))
}
#' If no formula is given, look for a default formula in x:
defaultplot <- is.null(formule)
if(defaultplot && !is.null(x$default.formula))
formule <- x$default.formula
if(!is.null(formule)) {
# ensure formulae are given as character strings.
formule <- FormatFaspFormulae(formule, "formule")
# Number of formulae should match number of functions.
nf <- length(formule)
nfun <- length(x$fns)
if(nf == 1 && nfun > 1)
formule <- rep.int(formule, nfun)
else if(nf != nfun)
stop(paste("Wrong number of entries in", sQuote("formule")))
}
#' Check on the length of the subset argument.
ns <- length(subset)
if(ns > 1) {
if(ns != length(x$fns))
stop("Wrong number of entries in subset argument.\n")
msub <- TRUE
} else msub <- FALSE
#' compute common x, y axis limits for all plots ?
xlim <- ylim <- NULL
if(samex || samey) {
cat("Computing limits\n")
#' call plot.fv to determine plot limits of each panel
for(i in 1:nrows) {
for(j in 1:ncols) {
k <- which[i,j]
if(!is.na(k)) {
fun <- as.fv(x$fns[[k]])
fmla <- if(!defaultplot) formule[k] else NULL
sub <- if(msub) subset[[k]] else subset
lims <- plot(fun, fmla, subset=sub, limitsonly=TRUE)
# update the limits
if(samex) xlim <- range(xlim, lims$xlim)
if(samey) ylim <- range(ylim, lims$ylim)
}
}
}
}
#############################################################
#' Set up the plot layout
n <- nrows * ncols
#' panels 1..n = plot panels
codes <- matrix(seq_len(n), byrow=TRUE, ncol=ncols, nrow=nrows)
heights <- rep.int(1, nrows)
widths <- rep.int(1, ncols)
#' annotation as chosen
if(outerlabels) {
# column headings
colhead.codes <- max(codes) + (1:ncols)
colhead.height <- 0.2
codes <- rbind(colhead.codes, codes)
heights <- c(colhead.height, heights)
# row headings
rowhead.codes <- max(codes) + (1:nrows)
rowhead.width <- 0.2
codes <- cbind(c(0,rowhead.codes), codes)
widths <- c(rowhead.width, widths)
}
if(banner) {
# overall banner
top.code <- max(codes) + 1
top.height <- 0.1 * (1+nlines)
codes <- rbind(top.code, codes)
heights <- c(top.height, heights)
}
#' declare layout
if(do.plot)
layout(codes, widths=widths, heights=heights)
############################################################
#' Plot the function panels
#'
colNames <- colnames(which)
rowNames <- rownames(which)
nrc <- max(nrows, ncols)
#' determine annotation arguments for each plot
if(do.plot) {
ann.def <- par("ann") && (nrc <= 3)
ann.info <- list(ann=ann.def, axes=ann.def)
} else {
ann.info <- NULL
}
#' determine margin around each panel
if(do.plot) {
if(is.null(mar.panel))
mar.panel <- if(nrc > 3 && outerlabels) rep.int(1/nrc, 4) else par("mar")
opa <- par(mar=mar.panel, xpd=TRUE)
on.exit(par(opa))
}
result <- list()
#' plot each function
for(i in 1:nrows) {
for(j in 1:ncols) {
k <- which[i,j]
if(is.na(k)) {
if(do.plot)
plot(0,0,type='n',xlim=c(0,1),
ylim=c(0,1),axes=FALSE,xlab='',ylab='', ...)
resultij <- NULL
} else {
fun <- as.fv(x$fns[[k]])
fmla <- if(!defaultplot) formule[k] else NULL
sub <- if(msub) subset[[k]] else subset
main <- if(outerlabels) "" else
if(nrows == 1) colNames[j] else
if(ncols == 1) rowNames[i] else
paren(paste(rowNames[i], colNames[j], sep=","))
resultij <-
do.call(plot,
resolve.defaults(list(x=quote(fun),
fmla=quote(fmla),
subset=quote(sub)),
list(...),
list(xlim=xlim, ylim=ylim,
main=main, legend=legend,
frame.plot=TRUE),
ann.info))
}
result <- append(result, list(resultij))
}
}
############################################################
#'
if(do.plot) {
#' Annotation as selected
if(outerlabels) {
par(mar=rep.int(0,4), xpd=TRUE)
#' Plot the column headers
for(j in 1:ncols) {
plot(numeric(0),numeric(0),type="n",ann=FALSE,axes=FALSE,
xlim=c(-1,1),ylim=c(-1,1))
text(0,0,colNames[j], cex=cex.outerlabels)
}
#' Plot the row labels
for(i in 1:nrows) {
plot(numeric(0),numeric(0),type="n",ann=FALSE,axes=FALSE,
xlim=c(-1,1),ylim=c(-1,1))
text(0,0,rowNames[i], srt=90, cex=cex.outerlabels)
}
}
if(banner) {
par(mar=rep.int(0,4), xpd=TRUE)
#' plot the banner
plot(numeric(0),numeric(0),type="n",ann=FALSE,axes=FALSE,
xlim=c(-1,1),ylim=c(-1,1))
cex <- resolve.defaults(list(...), list(cex.title=2))$cex.title
text(0,0, overall, cex=cex)
}
#' revert
layout(1)
}
return(invisible(result))
}
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