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test_that("model_parameters.rlm", {
skip_if_not_installed("MASS")
model <- MASS::rlm(formula = mpg ~ am * cyl, data = mtcars)
s <- summary(model)
params <- model_parameters(model)
expect_equal(params$SE, as.vector(coef(s)[, 2]), tolerance = 1e-3)
expect_equal(params$Coefficient, as.vector(coef(s)[, 1]), tolerance = 1e-3)
expect_equal(params$t, as.vector(coef(s)[, 3]), tolerance = 1e-3)
expect_equal(params$df_error, c(28, 28, 28, 28), tolerance = 1e-3)
expect_equal(
colnames(params),
c("Parameter", "Coefficient", "SE", "CI", "CI_low", "CI_high", "t", "df_error", "p")
)
})
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