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##############################################################################
#
# Copyright © 2005 Michel Grabisch and Ivan Kojadinovic
#
# Ivan.Kojadinovic@polytech.univ-nantes.fr
#
# This software is a package for the statistical system GNU R:
# http://www.r-project.org
#
# This software is governed by the CeCILL license under French law and
# abiding by the rules of distribution of free software. You can use,
# modify and/ or redistribute the software under the terms of the CeCILL
# license as circulated by CEA, CNRS and INRIA at the following URL
# "http://www.cecill.info".
#
# As a counterpart to the access to the source code and rights to copy,
# modify and redistribute granted by the license, users are provided only
# with a limited warranty and the software's author, the holder of the
# economic rights, and the successive licensors have only limited
# liability.
#
# In this respect, the user's attention is drawn to the risks associated
# with loading, using, modifying and/or developing or reproducing the
# software by the user in light of its specific status of free software,
# that may mean that it is complicated to manipulate, and that also
# therefore means that it is reserved for developers and experienced
# professionals having in-depth computer knowledge. Users are therefore
# encouraged to load and test the software's suitability as regards their
# requirements in conditions enabling the security of their systems and/or
# data to be ensured and, more generally, to use and operate it in the
# same conditions as regards security.
#
# The fact that you are presently reading this means that you have had
# knowledge of the CeCILL license and that you accept its terms.
#
##############################################################################
## Class Mobius.card.set.func extends superclass.set.func
##############################################################################
## Constructor from numeric
Mobius.card.set.func <- function(object) {
if (!is.numeric(object))
stop("wrong argument")
new("Mobius.card.set.func", data = object, n = length(object) - 1)
}
## Constructor from card.set.func
setMethod("Mobius", signature(object = "card.set.func"),
function(object,...) {
a <- numeric(object@n+1)
for (i in 1:(object@n+1)) {
c <- 1
for (j in i:1) {
a[i] <- a[i] + c * choose(i-1,j-1) * object@data[j]
c <- c * -1
}
}
new("Mobius.card.set.func", data = a, n = object@n)
}
)
## Constructor from card.set.func
setMethod("as.Mobius.card.set.func", signature(object = "card.set.func"),
function(object, ...) {
new("Mobius.card.set.func", data = object@data, n = object@n)
}
)
## Constructor from set.func
setMethod("as.Mobius.card.set.func", signature(object = "set.func"),
function(object,...) {
csf <- as.card.set.func.internal(object)
new("Mobius.card.set.func", data = csf$data, n = csf$n)
}
)
## Constructor from card.set.func
setMethod("as.Mobius.card.set.func", signature(object = "Mobius.set.func"),
function(object,...) {
if (!is.cardinal(object))
stop("wrong argument")
data <- .C("setfunction2cardinal",
as.integer(object@n),
as.integer(object@k),
as.double(object@data),
data = double(object@n+1),
PACKAGE="kappalab")$data
new("Mobius.card.set.func", data = data, n = object@n)
}
)
##############################################################################
## Show method for object Mobius.card.set.func
#setMethod("show", signature(object = "Mobius.card.set.func"),
# function(object) {
#
# show(to.data.frame(object))
# }
# )
## Displays the set function
setMethod("to.data.frame", signature(object = "Mobius.card.set.func"),
function(object, ...) {
d <- as.data.frame(object@data,0:object@n)
names(d)[1] <- is(object)[1]
d
}
)
##############################################################################
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