makeSupervisedTask = function(type, data, target, weights = NULL, blocking = NULL, fixup.data = "warn", check.data = TRUE) {
task = makeTask(type = type, data = data, weights = weights, blocking = blocking, fixup.data = fixup.data, check.data = check.data)
if (check.data) {
# costsens does not have a target col...
# assertCharacter(target, any.missing = FALSE, min.len = 1L)
w = which.first(target %nin% colnames(data))
if (length(w) > 0L)
stopf("Column names of data doesn't contain target var: %s", target[w])
checkTaskData(task$env$data, cols = setdiff(colnames(data), target))
}
addClasses(task, "SupervisedTask")
}
#' @export
print.SupervisedTask = function(x, print.target = TRUE, print.weights = TRUE, ...) {
td = x$task.desc
catf("Supervised task: %s", td$id)
catf("Type: %s", td$type)
if (print.target)
catf("Target: %s", collapse(td$target))
if (inherits(x, "SurvTask"))
catf("Events: %i", sum(getTaskTargets(x)[, 2L]))
catf("Observations: %i", td$size)
catf("Features:")
catf(printToChar(td$n.feat, collapse = "\n"))
catf("Missings: %s", td$has.missings)
if (print.weights)
catf("Has weights: %s", td$has.weights)
catf("Has blocking: %s", td$has.blocking)
}
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