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# Summary method for objects of class "tssdr"
`summary.tssdr` <- function(object, type = c("rectangle", "alllag", "alldir", "big"), thres = 0.8, ...) {
type <- match.arg(type)
L <- object$L
# Lag-direction combinations (type = "big" only)
if (type == "big") {
pk <- lagdir_big(L, thres = thres)
p <- max(pk[, 2])
} else {
ld <- lagdir_rect(L, thres = thres)
switch(type,
rectangle = {
p <- ld$dir_rect # Number of directions
k <- ld$lag_rect # Number of lags
},
alllag = {
p <- ld$dir_alllag
k <- ld$lag_alllag
},
alldir = {
p <- ld$dir_alldir
k <- ld$lag_alldir
}
)
}
W <- object$W[1:p, , drop = F] #The p'*p matrix: first p' rows of a matrix W
S <- object$S[, 1:(p + 1)] #The response and the first p' directions
RES <- list(W = W, L = L, S = S, type = type, algorithm = object$algorithm,
yname = object$yname, Xname = object$Xname)
if (type == "big") {
RES$pk = pk
} else {
RES$p <- p
RES$k <- k
}
class(RES) <- "summary.tssdr"
RES
}
# Printing method for objects of class "summary.tssdr"
`print.summary.tssdr` <- function(x, digits = 3, ...) {
cat("\n")
cat(strwrap(paste("Summary of", x$algorithm, "for response",
x$yname, "and predictors", x$Xname), prefix = "\t"), "\n")
cat("\n")
cat(paste("The signal separation matrix W is:"), "\n")
cat("\n")
print(x$W, digits = digits)
cat("\n")
cat("The L matrix is: \n")
cat("\n")
print(x$L, digits = digits)
cat("\n")
if (x$type == "rectangle") {
cat("Using the rectangle method:\n")
cat("\n")
if (x$p != 1) {
cat(paste("The first", x$p), "directions and ")
} else { #xp!=1 if
cat("The first direction and ")
} #xp=1 else
if (x$k == 1) {
cat("the first lag")
} else { #xk=1 if
cat(paste("the first", x$k), "lags")
} #xk=1 else
cat(" are relevant.\n")
} else { #rectangle if
if (x$type == "alldir") {
cat(paste("Choosing first all the", x$p), "directions:\n")
cat("\n")
if (x$k == 1) {
cat("The first lag is relevant. \n")
} else { #xk=1 if
cat(paste("The first", x$k), "lags are relevant. \n")
} #xk=1 else
} else { #alldir if
if (x$type == "alllag") {
cat(paste("Choosing first all the", x$k), "lags:\n")
cat("\n")
if (x$p == 1) {
cat("The first direction is relevant. \n")
} else { #xp=1 if
cat(paste("The first", x$p), "directions are relevant. \n")
} #xp=1 else
} else { #alllag if
cat("Using the biggest values in L to choose the directions and lags:\n")
cat("\n")
cat("The relevant combinations of lags and directions are \n")
cat("\n")
print(x$pk, digits = digits)
} #alllag else
} #alldir else
} #rectangle else
cat("\n")
} #print.summary.tssdr
# Coef method for objects of class "summary.tssdr"
# Extracts the signal separation matrix k'*p
`coef.summary.tssdr` <- function(object, ...) object$W
# Extracting the important estimated directions:
# Components method for objects of class "summary.tssdr"
`components.summary.tssdr` <- function(x, ...) x$S[, -1]
# Plotting method for objects of class "summary.tssdr" (R's basic time series plot)
`plot.summary.tssdr` <- function(x, main = "The response and the chosen directions", ...) {
plot.tssdr(x, main = main, ...)
}
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