Nothing
# gsignal Standard Functions
library(gsignal)
library(testthat)
tol <- 1e-6
# -----------------------------------------------------------------------
# detrend()
test_that("parameters to detrend() are correct", {
expect_error(detrend())
expect_error(detrend('invalid'))
expect_error(detrend(1:10, -1))
expect_error(detrend(1:10, 'invalid'))
expect_error(detrend(1:10, 0, 1))
})
test_that("detrend() tests are correct", {
N <- 32
x <- seq(0, N - 1, 1) / N + 2
y <- detrend (x)
expect_true(all(abs(y) < tol))
N <- 32
t <- seq(0, N - 1, 1) / N
x <- t * t + 2
y <- detrend (x, 2)
expect_true(all(abs(y) < tol))
N <- 32
t <- seq(0, N - 1, 1) / N
x <- cbind(t, 4 * t - 3)
y <- detrend (x)
expect_true(all(abs(y) < tol))
})
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