Nothing
# check bootstrap arguments (when they are passed as variable length args).
check.bootstrap.args = function(extra.args, network, data) {
# check the number of bootstrap replicates.
extra.args[["R"]] = check.replicates(extra.args[["R"]])
# check the size of each bootstrap sample.
extra.args[["m"]] = check.bootsize(extra.args[["m"]], data)
# check the learning algorithm.
algorithm = check.learning.algorithm(extra.args[["algorithm"]], bn = network)
# check the extra arguments for the learning algorithm.
algorithm.args =
check.learning.algorithm.args(extra.args[["algorithm.args"]],
algorithm = algorithm, bn = network)
extra.args[["algorithm"]] = algorithm
extra.args[["algorithm.args"]] = algorithm.args
# remap additional arguments used in hybrid algorithms.
if (algorithm %in% hybrid.algorithms) {
# there's no need to sanitize these arguments, it's done either in
# the calls to the structure learning algorithms.
if (is.null(extra.args[["algorithm.args"]][["restrict"]]))
extra.args[["algorithm.args"]][["restrict"]] = network$learning$restrict
if (is.null(extra.args[["algorithm.args"]]$maximize))
extra.args[["algorithm.args"]][["maximize"]] = network$learning$maximize
if (is.null(extra.args[["algorithm.args"]]$test))
extra.args[["algorithm.args"]][["test"]] = network$learning$rstest
if (is.null(extra.args[["algorithm.args"]]$score))
extra.args[["algorithm.args"]][["score"]] = network$learning$maxscore
}#THEN
# warn about and remove unused arguments.
extra.args =
check.unused.args(extra.args, c("R", "m", "algorithm", "algorithm.args"))
return(extra.args)
}#CHECK.BOOTSTRAP.ARGS
# check the number of bootstrap replicates.
check.replicates = function(R, default = 200) {
if (missing(R) || is.null(R))
R = default
else if (!is.positive.integer(R))
stop("the number of bootstrap replicates must be a positive integer.")
return(R)
}#CHECK.REiPLICATES
# check the size of bootstrap replicates.
check.bootsize = function(m, data) {
if (missing(m) || is.null(m))
m = nrow(data)
else if (!is.positive.integer(m))
stop("bootstrap sample size must be a positive integer.")
return(m)
}#CHECK.BOOTSIZE
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