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# vines: Multivariate Dependence Modeling with Vines
# Copyright (C) 2011-2015 Yasser Gonzalez Fernandez
# Copyright (C) 2011-2015 Marta Soto Ortiz
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
toStringCopula <- function (x, ...) {
if (length(x@parameters) > 0) {
parts <- character(0)
for (k in seq(along = x@parameters)) {
parts <- c(parts, paste(x@param.names[k], "=", x@parameters[k]))
}
parts <- paste(parts, collapse = ", ")
parameters <- paste(" (", parts, ")", sep = "")
} else {
parameters <- ""
}
paste(sub('[[:space:]]+$', '', x@fullname), parameters, sep = "")
}
setMethod("toString", "copula", toStringCopula)
showVine <- function (object) {
cat("Vine\n\n")
cat("Type:", object@type, "\n")
cat("Dimension:", object@dimension, "\n")
cat("Dependency trees:", object@trees, "\n")
}
setMethod("show", "Vine", showVine)
showCVine <- function (object) {
showVine(object)
if (length(object@dimensionNames) > 0) {
dimNames <- object@dimensionNames
} else {
dimNames <- as.character(seq(length = object@dimension))
}
for (j in seq(length = object@trees)) {
cat("\n")
for (i in seq(length = object@dimension - j)) {
conditioned <- paste(dimNames[j], dimNames[j + i], sep = ",")
conditioning <- paste(dimNames[seq(length = j - 1)], collapse = ",")
copulaLabel <- paste(conditioned,
if (j > 1) paste("|", conditioning, sep = "")
else character(0),
sep = "")
cat(copulaLabel, ": ", toString(object@copulas[[j, i]]), "\n", sep = "")
}
}
}
setMethod("show", "CVine", showCVine)
showDVine <- function (object) {
showVine(object)
if (length(object@dimensionNames) > 0) {
dimNames <- object@dimensionNames
} else {
dimNames <- as.character(seq(length = object@dimension))
}
for (j in seq(length = object@trees)) {
cat("\n")
for (i in seq(length = object@dimension - j)) {
conditioned <- paste(dimNames[i], dimNames[i + j], sep = ",")
conditioning <- paste(dimNames[seq(from = i + 1, to = i + j - 1)], collapse = ",")
copulaLabel <- paste(conditioned,
if (j > 1) paste("|", conditioning, sep = "")
else character(0),
sep = "")
cat(copulaLabel, ": ", toString(object@copulas[[j, i]]), "\n", sep = "")
}
}
}
setMethod("show", "DVine", showDVine)
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