Colouring scheme in networkD3 vs igraph

Question

I have a network where I have characterised each of the nodes with previous analysis- and have assigned the colours as follows:

plot.igraph(g, layout=layout.         


        

Answer 1

You can pass Javascript code through with the JS() function that comes with the networkD3 package. In Javascript, you can use hex code to specify colors. Here is an example:

YourColors <- 'd3.scaleOrdinal().range([ "#FFA500", "#4169E1",  "#32CD32",
                                         "#FFC0CB", "#8A2BE2", "#FF6347"]);'

forceNetwork(Links = data$links, Nodes = data$nodes, 
             Source = 'source', Target = 'target', 
             NodeID = 'value', Nodesize = 'size', Group = "group",
             ######################### 
             colourScale = JS(YourColors), 
             #########################
             zoom = T, legend = T, opacityNoHover = TRUE)

If you want to tie specific colors to specific variables, you can use

    YourColors <- 'd3.scaleOrdinal()
                  .domain(["variable1", "variable2", "variable3"])
                  .range(["#7FFF00", "#A52A2A", "#E6E6FA"])'