Adding Color to Vertex in VisNetwork Igraph

Question

This is a more general question to this: VisNetwork from IGraph - Can't Implement Cluster Colors to Vertices

I have an igraph that I have converted to a visNetwork:

library(visNetwork)
visIgraph(igraph, idToLabel = TRUE, layout = "layout_nicely")%>%
visNodes(size = 10) %>%
visOptions(highlightNearest = TRUE, 
     nodesIdSelection = TRUE)

I have a list of colors corresponding to the nodes that I want to color the graph with:

The colors are as follows:

c("#80FF00FF" "#FF0000FF" "#FF0000FF" "#00FFFFFF" "#FF0000FF" "#8000FFFF" "#FF0000FF" "#FF0000FF" "#FF0000FF" "#FF0000FF")

How do I add these colors to the nodes of the visNetwork?

It works in a normal plot if I were to do but not in visNetwork:

V(igraph)$color <- c("#80FF00FF" "#FF0000FF" "#FF0000FF" "#00FFFFFF" "#FF0000FF" "#8000FFFF" "#FF0000FF" "#FF0000FF" "#FF0000FF" "#FF0000FF")
plot(igraph)

Thanks

(If you want to have the reproducible code please refer to the link I mentioned at the top of the post.)

jac jac · Accepted Answer · 2016-10-06T05:11:19

You can add it as the "group" attribute of your igraph which informs the node coloring by default. Drawing on code from your other post :

col = c("#80FF00FF", "#FF0000FF", "#FF0000FF", "#00FFFFFF",
          "#FF0000FF", "#8000FFFF", "#FF0000FF", "#FF0000FF",
          "#FF0000FF", "#FF0000FF")
i96e <- set.vertex.attribute(i96e, name = "group",value = col)
visIgraph(i96e, idToLabel = TRUE, layout = "layout_nicely")

Adding Color to Vertex in VisNetwork Igraph

1 Answers