tests/testthat/test-glmrob_base.R

In ggeffects: Create Tidy Data Frames of Marginal Effects for 'ggplot' from Model Outputs

skip_on_os(c("mac", "solaris"))
skip_if_not_installed("robustbase")
skip_if_not_installed("withr")
skip_if_not_installed("emmeans")

withr::with_environment(
  new.env(),
  test_that("ggpredict, glmrob", {
    data(efc, package = "ggeffects")
    efc$neg_c_7d <- as.numeric(efc$neg_c_7 > median(efc$neg_c_7, na.rm = TRUE))
    d <- efc
    m1 <- robustbase::glmrob(
      neg_c_7d ~ c12hour + e42dep + c161sex + c172code,
      data = d,
      family = binomial
    )
    pr <- ggpredict(m1, "c12hour", verbose = FALSE)
    expect_equal(pr$predicted[1], 0.4035267, tolerance = 1e-4)
    expect_null(ggemmeans(m1, "c12hour", verbose = FALSE))
  })
)