Nothing
test_that("`find_formula` works with `mgcv::gam()`", {
skip_if_not_installed("mgcv")
set.seed(2) ## simulate some data...
dat <- mgcv::gamSim(1, n = 50, dist = "normal", scale = 2, verbose = FALSE)
b <- mgcv::gam(list(y ~ s(x0) + s(x1) + s(x2), ~ s(x3)), family = mgcv::gaulss(), data = dat)
f <- find_formula(b)
expect_named(f, c("conditional", "scale"))
expect_identical(f$conditional, formula("y ~ s(x0) + s(x1) + s(x2)"))
expect_identical(f$scale, formula("~s(x3)"))
})
test_that("formula warns for badly formulated response", {
data(iris)
model <- lm(iris[, 2] ~ Species, data = iris)
expect_warning(formula_ok(model), regex = "Using indexed")
})
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