context("test-element_size")
test_that("element_size works", {
relations <- data.frame(
sets = c(rep("a", 5), "b", "c"),
elements = c(letters[seq_len(6)], letters[6]),
fuzzy = runif(7),
stringsAsFactors = FALSE
)
a <- tidySet(relations)
df <- element_size(a)
expect_equal(colnames(df), c("elements", "size", "probability"))
expect_error(element_size(a, "z"))
out <- element_size(a, "b")
expect_error(set_size(a, c("a", "b")), NA)
b <- activate(a, "elements")
out2 <- size(b, "b")
expect_equal(out, out2)
expect_equal(nrow(out), 2L)
expect_equal(out$size, c(0, 1))
a1 <- add_elements(a, element = "g")
expect_equal(element_size(a1, "g")$size, 0)
})
test_that("element_size and filter work well together", {
set.seed(4567)
relations <- data.frame(sets = c(rep("A", 5), "B", "C"),
elements = c(letters[seq_len(6)], letters[6]),
fuzzy = runif(7),
stringsAsFactors = FALSE)
fuzzy_set <- tidySet(relations)
easy <- element_size(fuzzy_set, "f")
filtered <- fuzzy_set %>%
filter(sets %in% c("B", "C")) %>%
element_size(element = "f")
expect_equal(dim(easy), dim(filtered))
})
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