skip_if_not_installed("splines")
m1 <- lm(Sepal.Length ~ splines::bs(Petal.Width, df = 4) + Species, data = iris)
test_that("model_info", {
expect_true(model_info(m1)$is_linear)
})
test_that("find_predictors", {
expect_identical(find_predictors(m1), list(conditional = c("Petal.Width", "Species")))
expect_identical(
find_predictors(m1, flatten = TRUE),
c("Petal.Width", "Species")
)
expect_null(find_predictors(m1, effects = "random"))
})
test_that("get_predictors", {
expect_equal(get_predictors(m1), iris[, c("Petal.Width", "Species")])
})
test_that("find_response", {
expect_identical(find_response(m1), "Sepal.Length")
})
test_that("get_response", {
expect_identical(get_response(m1), iris$Sepal.Length)
})
test_that("link_inverse", {
expect_equal(link_inverse(m1)(0.2), 0.2, tolerance = 1e-4)
})
test_that("link_function", {
expect_equal(link_function(m1)(0.2), 0.2, tolerance = 1e-4)
})
test_that("get_data", {
expect_equal(nrow(get_data(m1)), 150)
expect_equal(
colnames(get_data(m1)),
c("Sepal.Length", "Petal.Width", "Species")
)
})
test_that("find_formula", {
expect_length(find_formula(m1), 1)
expect_equal(
find_formula(m1),
list(
conditional = as.formula("Sepal.Length ~ splines::bs(Petal.Width, df = 4) + Species")
),
ignore_attr = TRUE
)
})
test_that("find_variables", {
expect_equal(
find_variables(m1),
list(
response = "Sepal.Length",
conditional = c("Petal.Width", "Species")
)
)
expect_equal(
find_variables(m1, flatten = TRUE),
c("Sepal.Length", "Petal.Width", "Species")
)
})
test_that("find_parameters", {
expect_equal(
find_parameters(m1),
list(
conditional = c(
"(Intercept)",
"splines::bs(Petal.Width, df = 4)1",
"splines::bs(Petal.Width, df = 4)2",
"splines::bs(Petal.Width, df = 4)3",
"splines::bs(Petal.Width, df = 4)4",
"Speciesversicolor",
"Speciesvirginica"
)
)
)
})
test_that("get_parameters", {
expect_equal(nrow(get_parameters(m1)), 7)
expect_equal(
get_parameters(m1)$Parameter,
c(
"(Intercept)",
"splines::bs(Petal.Width, df = 4)1",
"splines::bs(Petal.Width, df = 4)2",
"splines::bs(Petal.Width, df = 4)3",
"splines::bs(Petal.Width, df = 4)4",
"Speciesversicolor",
"Speciesvirginica"
)
)
})
test_that("find_algorithm", {
expect_equal(find_algorithm(m1), list(algorithm = "OLS"))
})
test_that("find_terms", {
expect_equal(
find_terms(m1),
list(
response = "Sepal.Length",
conditional = c("splines", "bs(Petal.Width, df = 4)", "Species")
)
)
})
test_that("find_statistic", {
expect_identical(find_statistic(m1), "t-statistic")
})
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.