context("efficiency")
test_that("global_efficiency works", {
g <- graph_from_literal(A-B-C-D-A)
expect_that(global_efficiency(g), equals(5/6))
g <- graph_from_literal(A-+B-+C-+D-+A)
expect_that(global_efficiency(g), equals(11/18))
expect_that(global_efficiency(g, directed=F), equals(5/6))
})
test_that("local_efficiency works", {
g <- graph_from_literal(A-B-C-D-A)
expect_that(as.vector(local_efficiency(g)), equals(rep(0.5, vcount(g))))
expect_that(average_local_efficiency(g), equals(mean(local_efficiency(g))))
g <- graph_from_literal(A-+B-+C-+D-+A)
expect_that(as.vector(local_efficiency(g)), equals(rep(0.25, vcount(g))))
expect_that(average_local_efficiency(g), equals(mean(local_efficiency(g))))
g <- graph_from_literal(A-+B-+C-+D-+A)
expect_that(as.vector(local_efficiency(g, directed=F)), equals(rep(0.5, vcount(g))))
expect_that(average_local_efficiency(g, directed=F), equals(mean(local_efficiency(g, directed=F))))
expect_that(as.vector(local_efficiency(g, mode="in")), equals(rep(0, vcount(g))))
expect_that(as.vector(local_efficiency(g, mode="out")), equals(rep(0, vcount(g))))
})
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