Nothing
image.multi_tpfit <-
function(x, mpoints, which.dire, max.dist, main, mar, ask = TRUE, ..., nlevels = 10, contour = TRUE) {
# Plot transition probabilities matrices 2D
# through ellispoidal interpolation
#
# x multi_tpfit object
# mpoints number of points per axes
# which.dire two choosen 1D directions
# max.dist vector of maximum distances
# main title string
# mar vector to pass to par()
# ask boolean to pass to par()
# ... other args to pass to image()
# nlevels number of levels to pass to contour()
# contour boolean values that permits to draw contour lines
if(!is.multi_tpfit(x)) stop("argument \"x\" must be a 'multi_tpfit' object.")
nc <- length(x$coefficients)
nk <- dim(x$coefficients[[1]]$coefficients)[1]
if (missing(main) || !is.character(main)) main <- "Multidimensional transiogram"
if (missing(mpoints)) stop("\"mpoints\" is missing")
if (length(mpoints) != 1) mpoints <- mpoints[1]
all <- FALSE
if (missing(which.dire)) all <- TRUE
if (missing(max.dist)) max.dist <- 1
if (length(max.dist) == 1) max.dist <- rep(max.dist, nc)
if (length(max.dist) != nc)
stop("\"max.dist\" must be a scalar or vector with the same dimension of coordinates")
max.dist <- abs(max.dist)
rawLags <- sapply(max.dist, function(h)
seq(-h, h, length = mpoints)
)
which.dire <- if (all) combn(1:nc, 2) else matrix(which.dire)
nimg <- dim(which.dire)
if (nimg[1] != 2) stop("wrong length of \"which.dire\"")
ly <- matrix(c(rep(1, nk), rep(0, nk), 2:(nk^2+1), rep(0, nk), rep(nk^2+2, nk)), ncol = nk, byrow = TRUE)
yl <- c(rep(0, nk + 4))
ly <- cbind(yl, yl, ly, yl, yl)
widths <- c(rep(4 - 0.5 * nk, 2), rep(30/nk, nk), rep(4 - 0.5 * nk, 2)) / 4
heights <- c(0.75, 1/3.5, rep(7.5/nk, nk), 2/3.5, 1)
ly <- layout(ly, widths = widths, heights = heights, respect = TRUE)
nomi <- names(x$prop)
if (missing(mar) || !is.numeric(mar)) {
mar <- sum(c(0, 1, 0, -0.5, -0.2, rep(0, 4), 0.2, rep(c(-0.1, rep(0, 3)), 2), 0)[1:nk])
mar <- rep(mar, 4)
}
else {
if (length(mar) < 4) {
mar <- rep(mar[1], 4)
}
else {
mar <- mar[1:4]
}
}
for (i in 1:nimg[2]) {
lagsMat <- as.list(rep(0, nc))
lagsMat[[which.dire[1, i]]] <- rawLags[, which.dire[1, i]]
lagsMat[[which.dire[2, i]]] <- rawLags[, which.dire[2, i]]
lagsMat <- as.matrix(expand.grid(lagsMat))
Tprobs <- predict(x, lagsMat)
if (ask && all && (nimg[2] > 1)) {
devAskNewPage(TRUE)
on.exit(devAskNewPage(FALSE))
}
par(mar = c(0.3, 0.1, 0.3, 0.1))
plot.new()
title <- paste(main, " (", x$coordsnames[which.dire[1, i]], ", ", x$coordsnames[which.dire[2, i]], ")", sep = "")
text(0.5, 0.5, labels = title, cex = 2)
par(mar = mar)
for (j in 1:nk) {
for (k in 1:nk) {
image(rawLags[, which.dire[1, i]], rawLags[, which.dire[2, i]],
t(matrix(rev(Tprobs$Tmat[j, k, ]), mpoints, mpoints)),
xlab = paste("Coord", which.dire[1, i]),
ylab = paste("Coord", which.dire[2, i]), ...,
zlim = 0:1, axes = FALSE)
box()
if (k == 1) axis(2)
if (k == nk) axis(4, 0, labels = nomi[j], tick = FALSE, font = 3)
if (j == nk) axis(1)
if (j == 1) axis(3, 0, labels = nomi[k], tick = FALSE, font = 3)
if (contour) {
contour(rawLags[, which.dire[1, i]], rawLags[, which.dire[2, i]],
t(matrix(rev(Tprobs$Tmat[j, k, ]), mpoints, mpoints)),
nlevels, add = TRUE)
}
}
}
par(mar = c(2.2, 0.1, 1.2, 0.1))
image(matrix(0:500 / 500, ncol = 1), ..., main = "Legend", axes = FALSE)
box()
axis(1)
}
}
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