https://github.com/cran/kappalab
Tip revision: c35c3217a80758cae846a0c1336934ca8aee9b2b authored by Ivan Kojadinovic on 23 September 2006, 00:00:00 UTC
version 0.3-0
version 0.3-0
Tip revision: c35c321
Mobius.capacity.R
##############################################################################
#
# 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
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# software by the user in light of its specific status of free software,
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#
##############################################################################
## Class Mobius.capacity extends Mobius.game
##############################################################################
## Constructor from numeric
Mobius.capacity <- function(object, n, k) {
msf <- Mobius.set.func.internal(object, n, k)
new("Mobius.capacity", data = msf$data, subsets = msf$subsets,
n = msf$n, k=msf$k)
}
## Constructor from numeric
additive.capacity <- function(v) {
if (!is.positive(v))
stop("wrong argument")
Mobius.capacity(c(0,v),length(v),1)
}
## Constructor from Mobius.set.func
setMethod("as.Mobius.capacity", signature(object = "Mobius.set.func"),
function(object, ...) {
new("Mobius.capacity", data = object@data,
subsets = object@subsets, n = object@n, k = object@k)
}
)
## Constructor from capacity
setMethod("Mobius", signature(object = "capacity"),
function(object, ...) {
msf <- k.truncate.Mobius.internal(object, object@n)
new("Mobius.capacity", data = msf$data, subsets = msf$subsets,
n = msf$n, k=msf$k)
}
)
##############################################################################
## Tests whether the set function is normalized
setMethod("is.normalized", signature(object = "Mobius.capacity"),
function(object,...) {
sum(object@data) == 1
}
)
## Returns the normalized version of the capacity
setMethod("normalize", signature(object = "Mobius.capacity"),
function(object,...) {
Mobius.capacity(object@data / sum(object@data),
object@n, object@k)
}
)
##############################################################################
## Computes the veto indices of a capacity
setMethod("veto", signature(object = "Mobius.capacity"),
function(object, ...) {
result <- .C("veto_Mobius",
as.integer(object@n),
as.integer(object@k),
as.double(object@data),
as.integer(object@subsets),
result = double(object@n),
PACKAGE="kappalab")$result
names(result) <- 1:object@n
result
}
)
## Computes the favor indices of a capacity
setMethod("favor", signature(object = "Mobius.capacity"),
function(object, ...) {
result <- .C("favor_Mobius",
as.integer(object@n),
as.integer(object@k),
as.double(object@data),
as.integer(object@subsets),
result = double(object@n),
PACKAGE="kappalab")$result
names(result) <- 1:object@n
result
}
)
## Computes the orness degree of a capacity
setMethod("orness", signature(object = "Mobius.capacity"),
function(object, ...) {
.C("orness_Mobius",
as.integer(object@n),
as.integer(object@k),
as.double(object@data),
as.integer(object@subsets),
res = double(1),
PACKAGE="kappalab")$res
}
)
## Computes the normalized variance of a capacity
setMethod("variance", signature(object = "Mobius.capacity"),
function(object, ...) {
.C("variance_Mobius",
as.integer(object@n),
as.integer(object@k),
as.double(object@data),
as.integer(object@subsets),
res = double(1),
PACKAGE="kappalab")$res
}
)
## Computes the normalized entropy of a capacity
setMethod("entropy", signature(object = "Mobius.capacity"),
function(object, ...) {
.C("entropy_Mobius",
as.integer(object@n),
as.integer(object@k),
as.double(object@data),
as.integer(object@subsets),
res = double(1),
PACKAGE="kappalab")$res
}
)
##############################################################################