skip_if_not_installed("lme4")
set.seed(123)
startvec <- c(Asym = 200, xmid = 725, scal = 350)
nm1 <-
lme4::nlmer(
formula = circumference ~ SSlogis(age, Asym, xmid, scal) ~ Asym | Tree,
data = Orange,
start = startvec
)
test_that("model_info", {
skip_if(getRversion() < "4.1.0")
expect_true(model_info(nm1)$is_linear)
})
test_that("find_statistic", {
expect_identical(find_statistic(nm1), "t-statistic")
})
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