I made the following graph using the "visnetwork" library:
library(tidyverse)
library(igraph)
set.seed(123)
n=15
data = data.frame(tibble(d = paste(1:n)))
relations = data.frame(tibble(
from = sample(data$d),
to = lead(from, default=from[1]),
))
data$name = c("new york", "chicago", "los angeles", "orlando", "houston", "seattle", "washington", "baltimore", "atlanta", "las vegas", "oakland", "phoenix", "kansas", "miami", "newark" )
graph = graph_from_data_frame(relations, directed=T, vertices = data)
#red circle: starting point and final point
V(graph)$color <- ifelse(data$d == relations$from[1], "red", "orange")
plot(graph, layout=layout.circle, edge.arrow.size = 0.2, main = "my_graph")
library(visNetwork)
a = visIgraph(graph)
m_1 = 1
m_2 = 23.6
a = toVisNetworkData(graph) %>%
c(., list(main = paste0("Trip ", m_1, " : "), submain = paste0 (m_2, "KM") )) %>%
do.call(visNetwork, .) %>%
visIgraphLayout(layout = "layout_in_circle") %>%
visEdges(arrows = 'to')
- I am now trying to add number labels to each individual node, based on the order that they appear in (i.e. "red circle" is always 1, follow the arrow until you get to 2, etc.):
I tried to add an extra column to the data file to include these numbers (each "number label" corresponds to the order that the cities are visited in):
#is there an "automatic" way to do this? i did this manually:
data$label = c(11, 5, 2, 12, 7, 6, 10, 14, 15, 4, 12, 9, 13, 3,1)
I then tried to add both "number labels" and "name labels" (i.e. city) to the nodes in the visnetwork graph:
V(graph)$name = data$label = c(11, 5, 2, 12, 7, 6, 10, 14, 15, 4, 12, 9, 13, 3,1)
plot(graph, layout=layout.circle, edge.arrow.size = 0.2, main = "my_graph")
library(visNetwork)
a = visIgraph(graph)
m_1 = 1
m_2 = 23.6
a = toVisNetworkData(graph) %>%
c(., list(main = paste0("Trip ", m_1, " : "), submain = paste0 (m_2, "KM") )) %>%
do.call(visNetwork, .) %>%
visIgraphLayout(layout = "layout_in_circle") %>%
visEdges(arrows = 'to')
a
But it gives me an error:
Error in `.rowNamesDF<-`(x, value = value) :
duplicate 'row.names' are not allowed
In addition: Warning message:
non-unique value when setting 'row.names': ‘12’
In the end, I would still like to make this graph (using visnetwork):
Is there another way to do this?
Thank you!