Nothing
test_that("Regularization weights are reasonable", {
is_valid_sequence <- function(x) {
!is.unsorted(rev(x)) && all(is.finite(x)) && all(x >= 0)
}
# BH sequence type
for (q in c(1e-5, 0.1, 0.99)) {
for (n_lambda in c(1, 2, 1000)) {
x <- regularizationWeights(n_lambda, q = q, type = "bh")
expect_true(is_valid_sequence(x))
}
}
# Gaussian sequence type
for (q in c(1e-5, 0.1, 0.99)) {
for (n_lambda in c(1, 2, 1000)) {
for (n in c(50, 2000)) {
x <- regularizationWeights(n_lambda, q = q, type = "gaussian", n = n)
expect_true(is_valid_sequence(x))
}
}
}
# OSCAR
for (theta1 in c(0, 0.5, 1)) {
for (theta2 in c(0, 0.5, 1)) {
x <- regularizationWeights(
n_lambda,
theta1 = theta1,
theta2 = theta2,
type = "oscar"
)
expect_true(is_valid_sequence(x))
}
}
# lasso
for (n_lambda in c(1, 100)) {
x <- regularizationWeights(n_lambda, type = "lasso")
expect_true(is_valid_sequence(x))
}
})
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