if (
requiet("ordinal") &&
requiet("MASS")) {
data(housing, package = "MASS")
m1 <- clm2(Sat ~ Infl + Type + Cont, weights = Freq, data = housing)
test_that("model_info", {
expect_true(model_info(m1)$is_ordinal)
expect_false(model_info(m1)$is_multinomial)
expect_false(model_info(m1)$is_linear)
})
test_that("find_predictors", {
expect_identical(find_predictors(m1), list(conditional = c("Infl", "Type", "Cont")))
expect_identical(
find_predictors(m1, flatten = TRUE),
c("Infl", "Type", "Cont")
)
expect_null(find_predictors(m1, effects = "random"))
})
test_that("find_random", {
expect_null(find_random(m1))
})
test_that("get_random", {
expect_warning(get_random(m1))
})
test_that("find_response", {
expect_identical(find_response(m1), "Sat")
})
test_that("get_response", {
expect_equal(get_response(m1), housing$Sat)
})
test_that("get_predictors", {
expect_equal(colnames(get_predictors(m1)), c("Infl", "Type", "Cont"))
})
test_that("link_inverse", {
expect_equal(link_inverse(m1)(0.2), plogis(0.2), tolerance = 1e-5)
})
test_that("find_weights", {
expect_equal(find_weights(m1), "Freq")
})
test_that("get_weights", {
expect_equal(get_weights(m1), housing$Freq)
})
test_that("get_data", {
expect_equal(nrow(get_data(m1)), 72)
expect_equal(
colnames(get_data(m1)),
c("Sat", "Infl", "Type", "Cont", "Freq")
)
})
test_that("find_formula", {
expect_length(find_formula(m1), 1)
expect_equal(
find_formula(m1),
list(conditional = as.formula("Sat ~ Infl + Type + Cont")),
ignore_attr = TRUE
)
})
test_that("find_terms", {
expect_equal(find_terms(m1), list(
response = "Sat",
conditional = c("Infl", "Type", "Cont")
))
expect_equal(
find_terms(m1, flatten = TRUE),
c("Sat", "Infl", "Type", "Cont")
)
})
test_that("n_obs", {
expect_equal(n_obs(m1), 1681)
})
test_that("linkfun", {
expect_false(is.null(link_function(m1)))
})
test_that("linkinv", {
expect_false(is.null(link_inverse(m1)))
})
test_that("find_parameters", {
expect_equal(
find_parameters(m1),
list(
conditional = c(
"Low|Medium",
"Medium|High",
"InflMedium",
"InflHigh",
"TypeApartment",
"TypeAtrium",
"TypeTerrace",
"ContHigh"
)
)
)
expect_equal(nrow(get_parameters(m1)), 8)
expect_equal(
get_parameters(m1)$Parameter,
c(
"Low|Medium",
"Medium|High",
"InflMedium",
"InflHigh",
"TypeApartment",
"TypeAtrium",
"TypeTerrace",
"ContHigh"
)
)
})
test_that("is_multivariate", {
expect_false(is_multivariate(m1))
})
test_that("find_statistic", {
expect_identical(find_statistic(m1), "z-statistic")
})
}
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