Nothing
context("PipeOpScaleMaxAbs")
test_that("PipeOpScaleMaxAbs - basic properties", {
task = mlr_tasks$get("iris")
op = PipeOpScaleMaxAbs$new()
expect_pipeop(op)
expect_datapreproc_pipeop_class(PipeOpScaleMaxAbs, task = task)
set.seed(1234)
result = op$train(list(task))
resdt = result[[1]]$data()
expect_task(result[[1]])
expect_equal(resdt, op$predict(list(task))[[1]]$data())
expect_true(all(sapply(resdt[, 2:5], max) == 1L))
resmin = sapply(task$data()[, 2:5], min)/sapply(task$data()[, 2:5], max)
expect_identical(sapply(resdt[, 2:5], min), resmin)
})
test_that("Other maxabs", {
task = mlr_tasks$get("iris")
op = PipeOpScaleMaxAbs$new(param_vals = list(maxabs = 0.6))
set.seed(1234)
result = op$train(list(task))
resdt = result[[1]]$data()
expect_true(all(sapply(resdt[, 2:5], max) == 0.6))
resmin = (sapply(task$data()[, 2:5], min)/sapply(task$data()[, 2:5], max))*0.6
expect_identical(sapply(resdt[, 2:5], min), resmin)
})
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