Nothing
context("Median Absolute Deviation")
test_that("roll_MAD works", {
# See: https://en.wikipedia.org/wiki/Median_absolute_deviation
x <- c(NA, NA, NA, 1, 1, 2, 2, 4, 6, 9, NA, NA, NA)
expect_equal(
roll_MAD(x, 7),
c(NA, NA, NA, NA, NA, NA, 1, NA, NA, NA, NA, NA, NA)
)
# More examples
x <- c(0, 0, 0, 1, 1, 2, 2, 4, 6, 9, 0, 0, 0)
expect_equal(
roll_MAD(x, 1),
c(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
)
expect_equal(
roll_MAD(x, 3),
c(NA, 0, 0, 0, 0, 0, 0, 2, 2, 3, 0, 0, NA)
)
expect_equal(
roll_MAD(x, 5),
c(NA, NA, 0, 1, 1, 1, 1, 2, 2, 4, 0, NA, NA)
)
})
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