revdep/checks.noindex/waywiser/old/waywiser.Rcheck/tests/testthat/test-global_geary.R

In AFIT-R/vip: Variable Importance Plots

test_that("Global Geary statistics are stable", {
  guerry_modeled <- guerry
  guerry_lm <- lm(Crm_prs ~ Litercy, guerry_modeled)
  guerry_modeled$predictions <- predict(guerry_lm, guerry_modeled)

  weights <- ww_build_weights(guerry)

  resid <- guerry_modeled$Crm_prs - guerry_modeled$predictions

  expect_snapshot({
    df_global_c <- ww_global_geary_c(guerry_modeled, Crm_prs, predictions)
    df_global_c[1:3]
  })

  expect_snapshot({
    df_global_c_p <- ww_global_geary_pvalue(guerry_modeled, Crm_prs, predictions)
    df_global_c_p[1:3]
  })

  expect_snapshot(
    (vec_global_c <- ww_global_geary_c_vec(guerry_modeled$Crm_prs, guerry_modeled$predictions, weights))
  )

  expect_snapshot(
    (vec_global_c_p <- ww_global_geary_pvalue_vec(guerry_modeled$Crm_prs, guerry_modeled$predictions, weights))
  )

  expect_identical(
    df_global_c$.estimate,
    vec_global_c
  )

  expect_identical(
    df_global_c_p$.estimate,
    vec_global_c_p
  )

  set.seed(123)
  spdep_output <- spdep::geary.test(resid, weights)

  expect_identical(
    vec_global_c,
    spdep_output$estimate[[1]]
  )

  expect_identical(
    vec_global_c_p,
    spdep_output$p.value
  )
})