Nothing
test_that("signal", {
set.seed(333)
x <- sin(seq(0, 4 * pi, length.out = 100)) + rnorm(100, 0, 0.2)
s1 <- as.vector(smoothing(x, method = "loess"))
s2 <- as.vector(smoothing(x, method = "smooth"))
expect_true(as.numeric(datawizard::smoothness(s1)) > as.numeric(datawizard::smoothness(s2)))
})
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