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context("cluster_label_prop")
test_that("label.probagation.community works", {
library(igraph)
g <- make_graph("Zachary")
set.seed(42)
lpc <- cluster_label_prop(g)
expect_that(lpc$modularity, equals(modularity(g, lpc$membership)))
expect_that(as.vector(membership(lpc)),
equals(c(1, 1, 2, 1, 3, 3, 3, 1, 2, 2, 3, 1, 1, 1, 2, 2,
3, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2)))
expect_that(length(lpc), equals(3))
expect_that(sizes(lpc),
equals(structure(c(10L, 19L, 5L), .Dim = 3L, .Dimnames =
structure(list(`Community sizes` =
c("1", "2", "3")),
.Names = "Community sizes"),
class = "table")))
})
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