Nothing
gset_sum <-
function(...)
{
l <- list(...)
## determine connector
CON <- if (all(sapply(l, gset_is_crisp, na.rm = TRUE)))
`+`
else
function(x, y) pmin(1, x + y)
## compute target support
support <- do.call(set_union, l)
## apply connector
.make_gset_from_list_of_gsets_and_support_and_connector(l, support, CON)
}
gset_difference <-
function(...)
{
l <- list(...)
## connector
CON <- function(x, y) pmax(0, x - y)
## compute target support
support <- as.set(l[[1]])
if (set_is_empty(support))
return(set())
## apply connector
.make_gset_from_list_of_gsets_and_support_and_connector(l, support, CON)
}
cset_sum <-
function(...)
{
l <- list(...)
## check matchfun and orderfun
matchfun <- .check_matchfun(l)
orderfun <- .check_orderfun(l)
## determine connector
CON <- if (all(sapply(l, gset_is_crisp, na.rm = TRUE)))
`+`
else
function(x, y) pmin(1, x + y)
## compute target support
support <- cset(do.call(set_union, l),
matchfun = matchfun,
orderfun = orderfun)
## apply connector
.make_cset_from_gset_and_orderfun_and_matchfun(
.make_gset_from_list_of_gsets_and_support_and_connector(l,
support,
CON,
matchfun),
orderfun,
matchfun)
}
cset_difference <-
function(...)
{
l <- list(...)
## check matchfun and orderfun
matchfun <- .check_matchfun(l)
orderfun <- .check_orderfun(l)
## connector
CON <- function(x, y) pmax(0, x - y)
## compute target support
support <- cset(as.set(l[[1]]),
matchfun = matchfun,
orderfun = orderfun)
if (isTRUE(cset_is_empty(support)))
return(support)
## apply connector
.make_cset_from_gset_and_orderfun_and_matchfun(
.make_gset_from_list_of_gsets_and_support_and_connector(l,
support,
CON,
matchfun),
orderfun,
matchfun)
}
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