test_that("vr_graphs can detect incorrect parameters properly",{ expect_error(vr_graphs(X = 2,eps = c(-1,0)),"eps") expect_error(vr_graphs(X = 2,eps = c(1),distance_mat = NULL),"NULL") expect_error(vr_graphs(X = 2,eps = c(1),distance_mat = c(T,F)),"single") expect_error(vr_graphs(X = 2,eps = c(1),distance_mat = NA),"NA") expect_error(vr_graphs(X = 2,eps = c(1)),"matrix") expect_error(vr_graphs(X = data.frame(),eps = c(1)),"one") expect_error(vr_graphs(X = data.frame(x = c(1,2,3),y = c(1,NA,3)),eps = c(1)),"missing") expect_error(vr_graphs(X = data.frame(x = 1:3,y = 1:3),distance_mat = T,eps = c(1)),"distance") expect_error(vr_graphs(X = data.frame(x = 1:3,y = as.character(1:3)),eps = c(1)),"numeric") expect_error(vr_graphs(X = data.frame(x = 1:10,y = 1:10),eps = c(1),return_clusters = NULL),"NULL") expect_error(vr_graphs(X = data.frame(x = 1:10,y = 1:10),eps = c(1),return_clusters = c(T,F)),"single") expect_error(vr_graphs(X = data.frame(x = 1:10,y = 1:10),eps = c(1),return_clusters = NA),"NA") }) # test_that("vr_graphs is working properly",{ # # # simulate data from the unit circle and calculate # # its diagram # skip_if_not_installed("TDA") # df <- TDA::circleUnif(n = 25) # diag <- TDA::ripsDiag(df,maxdimension = 1,maxscale = 2) # # # get minimum death radius of any data cluster # min_death_H0 <- min(diag$diagram[which(diag$diagram[,1] == 0),3L]) # # # get birth and death radius of the loop # loop_birth <- as.numeric(diag$diagram[nrow(diag$diagram),2L]) # loop_death <- as.numeric(diag$diagram[nrow(diag$diagram),3L]) # # # compute Rips-Vietoris complexes at radii half of # # min_death_H0 and the mean of loop_birth and # # loop_death, returning clusters # comp <- vr_graphs(X = df,eps = c(0.5*min_death_H0,(loop_birth + loop_death)/2)) # # # verify that there are 25 clusters for the smaller radius # # and 1 cluster for the larger radius # expect_identical(length(comp$graphs[[1]]$clusters),25L) # expect_identical(length(comp$graphs[[2]]$clusters),1L) # # # get value between min_death_H0 and next value # d <- as.matrix(dist(df)) # inds <- which(d > min_death_H0,arr.ind = T) # vals <- d[inds] # vals <- vals[order(vals)] # vals <- unique(vals) # next_val <- vals[[1]] # next_next_val <- vals[[2]] # # # check that the rips complex at a next radius has at most 24 clusters # comp <- vr_graphs(X = df,eps = c(0.5*(next_val + next_next_val))) # expect_lte(length(comp$complexes[[1]]$clusters),24L) # # # make sure that when data has rownames that they get saved properly # rownames(df) <- paste0("V",1:25) # comp <- vr_graphs(X = df,eps = c(0.5*min_death_H0,(loop_birth + loop_death)/2)) # # }) # test_that("plot_vr_graph can detect incorrect parameters properly",{ # # skip_if_not_installed("TDA") # skip_if_not_installed("igraph") # # expect_error(plot_vr_graph(graphs = c()),"vr_graphs") # expect_error(plot_vr_graph(graphs = list(1,2,3)),"vr_graphs") # expect_error(plot_vr_graph(graphs = list(data = 1,graphs = 2)),"vr_graphs") # expect_error(plot_vr_graph(graphs = list(data = c(1,2,3),graphs = c())),"vr_graphs") # # # simulate data from the unit circle and calculate # # its diagram # df <- TDA::circleUnif(n = 25) # diag <- TDA::ripsDiag(df,maxdimension = 1,maxscale = 2) # # # get minimum death radius of any data cluster # min_death_H0 <- min(diag$diagram[which(diag$diagram[,1] == 0),3L]) # # # get birth and death radius of the loop # loop_birth <- as.numeric(diag$diagram[nrow(diag$diagram),2L]) # loop_death <- as.numeric(diag$diagram[nrow(diag$diagram),3L]) # # # compute Rips-Vietoris complexes at radii half of # # min_death_H0 and the mean of loop_birth and # # loop_death, returning clusters # comp <- vr_graphs(X = df,eps = c(0.5*min_death_H0,(loop_birth + loop_death)/2)) # # expect_error(plot_vr_graph(graphs = comp,eps = 0),"positive") # expect_error(plot_vr_graph(graphs = comp,eps = 3),"scale") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,plot_isolated_vertices = NULL),"NULL") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,plot_isolated_vertices = c(T,F)),"single") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,plot_isolated_vertices = 2),"boolean") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,return_layout = NULL),"NULL") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,return_layout = c(T,F)),"single") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,return_layout = 2),"boolean") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,vertex_labels = NULL),"NULL") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,vertex_labels = c(T,F)),"single") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,vertex_labels = "2"),"boolean") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,cols = NA),"NA") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,cols = c(1,2)),"character") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,cols = c("1",NA)),"missing") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,cols = c("1","2")),"vertices") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,component_of = c(1,2)),"single") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,component_of = NaN),"NaN") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,component_of = 26),"vertices") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,title = NA),"character") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,title = c("1","2")),"single") # # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,layout = NA),"matrix") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,layout = matrix(data = 1)),"columns") # expect_error(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0,layout = matrix(data = c(1,2),ncol = 2)),"rows") # # expect_warning(plot_vr_graph(graphs = comp,eps = 0.5*min_death_H0, component_of = 1),"empty") # # }) # test_that("plot_vr_graph is working properly",{ # # skip_if_not_installed("TDA") # skip_if_not_installed("igraph") # # # simulate data from the unit circle and calculate # # its diagram # df <- TDA::circleUnif(n = 25) # diag <- TDA::ripsDiag(df,maxdimension = 1,maxscale = 2) # # # get minimum death radius of any data cluster # min_death_H0 <- min(diag$diagram[which(diag$diagram[,1] == 0),3L]) # # # get birth and death radius of the loop # loop_birth <- as.numeric(diag$diagram[nrow(diag$diagram),2L]) # loop_death <- as.numeric(diag$diagram[nrow(diag$diagram),3L]) # # # compute Rips-Vietoris complexes at radii half of # # min_death_H0 and the mean of loop_birth and # # loop_death, returning clusters # comp <- vr_graphs(X = df,eps = c(0.5*min_death_H0,(loop_birth + loop_death)/2)) # # # check layout functionality # suppressWarnings({ # # layout <- plot_vr_graph(comp,eps = 0.5*min_death_H0,return_layout = T) # # }) # expect_equal(dim(layout),c(0,2)) # layout <- plot_vr_graph(comp,eps = 0.5*min_death_H0,return_layout = T,plot_isolated_vertices = T) # expect_equal(nrow(layout),25) # layout <- plot_vr_graph(comp,eps = 0.5*min_death_H0,return_layout = T,plot_isolated_vertices = T,component_of = 1) # expect_equal(nrow(layout),1) # layout <- plot_vr_graph(comp,eps = (loop_birth + loop_death)/2,return_layout = T,component_of = 1) # expect_lte(nrow(layout),25) # rownames(df) <- paste("V",1:25,sep = "") # comp <- vr_graphs(X = df,eps = c(0.5*min_death_H0,(loop_birth + loop_death)/2)) # layout <- plot_vr_graph(comp,eps = 0.5*min_death_H0,return_layout = T,plot_isolated_vertices = T) # expect_equal(nrow(layout),25) # layout <- plot_vr_graph(comp,eps = 0.5*min_death_H0,return_layout = T,plot_isolated_vertices = T,component_of = "V1") # expect_equal(nrow(layout),1) # layout <- plot_vr_graph(comp,eps = 0.5*min_death_H0,return_layout = T,plot_isolated_vertices = T,layout = layout) # expect_equal(nrow(layout),1) # # })