Nothing
library("graphsim")
library("igraph")
context("Make Laplacian Matrix")
test_that("Generate Laplacian matrix from adjacency matrix", {
graph_test1_edges <- rbind(c("A", "B"), c("B", "C"), c("B", "D"))
graph_test1 <- graph.edgelist(graph_test1_edges, directed = TRUE)
adjacency_matrix1 <- make_adjmatrix_graph(graph_test1)
laplacian_matrix1 <- make_laplacian_adjmat(adjacency_matrix1)
expect_equal(isSymmetric(laplacian_matrix1), TRUE)
expect_equal(diag(laplacian_matrix1), degree(graph_test1))
expect_equal(sum(diag(laplacian_matrix1)), sum(degree(graph_test1)))
expect_equal(nrow(laplacian_matrix1), length(V(graph_test1)))
expect_equal(ncol(laplacian_matrix1), length(V(graph_test1)))
expect_equal(sum(laplacian_matrix1), 0)
expect_true(all(adjacency_matrix1 == cbind(c(0, 1, 0, 0), c(1, 0, 1, 1), c(0, 1, 0, 0), c(0, 1, 0, 0))))
expect_equal(all(is.matrix(laplacian_matrix1)), TRUE)
expect_true(all(laplacian_matrix1 == cbind(c(1, -1, 0, 0), c(-1, 3, -1, -1), c(0, -1, 1, 0), c(0,-1, 0, 1))))
})
test_that("Generate Laplacian matrix from graph structure", {
graph_test1_edges <- rbind(c("A", "B"), c("B", "C"), c("B", "D"))
graph_test1 <- graph.edgelist(graph_test1_edges, directed = TRUE)
laplacian_matrix1 <- make_laplacian_graph(graph_test1)
expect_equal(isSymmetric(laplacian_matrix1), TRUE)
expect_equal(diag(laplacian_matrix1), degree(graph_test1))
expect_equal(sum(diag(laplacian_matrix1)), sum(degree(graph_test1)))
expect_equal(nrow(laplacian_matrix1), length(V(graph_test1)))
expect_equal(ncol(laplacian_matrix1), length(V(graph_test1)))
expect_equal(sum(laplacian_matrix1), 0)
expect_equal(all(is.matrix(laplacian_matrix1)), TRUE)
expect_true(all(laplacian_matrix1 == cbind(c(1, -1, 0, 0), c(-1, 3, -1, -1), c(0, -1, 1, 0), c(0,-1, 0, 1))))
})
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.