CODEWITHSUNDEEP
rthree.jsigraph
zesla
zesla

Reputation: 11803

unable to use R package threejs and igraph to visualize network

I'm using r package igraph and threejs to visualize my network. Here is an example to show the issue I found. 

# Make a correlation matrix:
mat=cor(t(mtcars[,c(1,3:6)]))
# Keep only high correlations
mat[mat<0.995]=0 
# Make an Igraph object from this matrix:
net=graph_from_adjacency_matrix( mat, weighted=T, mode="undirected", diag=F)
graphjs(net)

what I got is a blank picture. I also tried to use igraph2graphjs function to convert igraph object to convert it to graphjs friendly object. But it seems like there is no such function from threejs package any more.below is the error message I got.

net.js <- threejs::igraph2graphjs(net)
graphjs(net.js)

Error: 'igraph2graphjs' is not an exported object from 'namespace:threejs'

A follow-up question is: Is there any other package I can use to make interactive visualization from igraph objects?

Upvotes: 0

Views: 460

Answers (2)

CermakM
CermakM

Reputation: 2022

With current version 0.3.1 you can pass the igraph object to the graphjs function. The issue still persists until you set the vertex attributes.

Setting the vertex attributes size and color should solve the problem

g <- graph_from_data_frame(df)

V(g)$size <- 10
V(g)$color <- 'red'

graphjs(g)

Upvotes: 0

storaged
storaged

Reputation: 1847

graphjs output needs to be rendered in the outside viewer.

If you run the code in the R terminal interpreter it works like a charm.

Somehow RStudio does not handle it automatically. Try to use the: Show in new window option in the Viewer panel of the RStudio. It opens your graph externaly (e.g. in the web browser).

Upvotes: 1

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