Nothing
dat <- readr::read_csv("cas500.csv", show_col_types = FALSE)
filtered.1LVL <- filter_cat(dat, "cellsource", c("job"))
filtered.3LVL <- filter_cat(dat, "getlunch", c("home", "tuckshop", "friend"))
test_that("Result is only those with the filtered variable remains", {
expect_true(all(levels(filtered.1LVL$cellsource) == c("job")))
expect_true(all(levels(filtered.3LVL$getlunch) == c("home", "tuckshop", "friend")))
})
test_that("Result is the other categorical variables remain", {
expect_true(all(levels(filtered.1LVL$travel) == levels(dat$travel)))
expect_true(all(levels(filtered.1LVL$getlunch) == levels(dat$getlunch)))
expect_true(all(levels(filtered.1LVL$gender) == levels(dat$gender)))
expect_true(all(levels(filtered.3LVL$cellsource) == levels(dat$cellsource)))
expect_true(all(levels(filtered.3LVL$travel) == levels(dat$travel)))
expect_true(all(levels(filtered.3LVL$gender) == levels(dat$gender)))
})
library(survey)
data(api)
svy <- svydesign(~ dnum + snum, weights = ~pw, fpc = ~ fpc1 + fpc2, data = apiclus2)
test_that("Filtering survey design works", {
expect_silent(
svy_filtered <- filter_cat(svy, "stype", "E")
)
svy_filtered_proper <- subset(svy, stype == "E")
expect_equal(
svymean(~api00, svy_filtered),
svymean(~api00, svy_filtered_proper)
)
check_eval(svy_filtered)
})
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