Nothing
test_that("cluster_fast_greedy works", {
set.seed(42)
g <- make_graph("Zachary")
fc <- cluster_fast_greedy(g)
expect_that(modularity(g, fc$membership), equals(max(fc$modularity)))
expect_that(
as.vector(membership(fc)),
equals(c(
1, 3, 3, 3, 1, 1, 1, 3, 2, 3,
1, 1, 3, 3, 2, 2, 1, 3, 2, 1,
2, 3, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2
))
)
expect_that(length(fc), equals(3))
expect_that(as.numeric(sizes(fc)), equals(c(8, 17, 9)))
d <- as.dendrogram(fc)
expect_that(print(d), prints_text("2 branches.*34 members.*height 33"))
expect_that(
print(d[[1]]),
prints_text("2 branches.*17 members.*height 32")
)
expect_that(
print(d[[2]]),
prints_text("2 branches.*17 members.*height 30")
)
m2 <- cut_at(fc, no = 3)
expect_that(
modularity(g, m2),
equals(fc$modularity[length(fc$modularity) - 2])
)
})
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