Nothing
test_that("SGM works", {
local_rng_version("3.5.0")
set.seed(42)
vc <- 10
nos <- 3
g1 <- erdos.renyi.game(vc, .5)
randperm <- c(1:nos, nos + sample(vc - nos))
g2 <- sample_correlated_gnp(g1, corr = .7, p = g1$p, permutation = randperm)
P <- match_vertices(g1[], g2[],
m = nos, start = matrix(1 / (vc - nos), vc - nos, vc - nos),
iteration = 20
)
expect_that(c(1:nos, P$corr[, 2]), equals(randperm))
expect_that(apply(P$P != 0, 1, which), equals(randperm))
expect_that(
apply(P$D != 0, 1, which),
equals(randperm[(nos + 1):vc] - nos)
)
## Slightly bigger
set.seed(42)
vc <- 100
nos <- 10
g1 <- erdos.renyi.game(vc, .1)
perm <- c(1:nos, sample(vc - nos) + nos)
g2 <- sample_correlated_gnp(g1, corr = 1, p = g1$p, permutation = perm)
P <- match_vertices(g1[], g2[],
m = nos, start = matrix(1 / (vc - nos), vc - nos, vc - nos),
iteration = 20
)
expect_that(P$corr[, 2], equals(perm[(nos + 1):vc]))
expect_that(apply(P$P != 0, 1, which), equals(perm))
expect_that(
apply(P$D != 0, 1, which),
equals(perm[(nos + 1):vc] - nos)
)
})
test_that("LSAP does not change input matrix", {
x <- matrix(c(5, 1, 4, 3, 5, 2, 2, 4, 4), nrow = 3)
solve_LSAP(x)
expect_equal(x, matrix(c(5, 1, 4, 3, 5, 2, 2, 4, 4), nrow = 3))
})
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