如何使用 ggnet2 设置固定节点位置

Question

I am using ggnet2 to visualize networks and I was wondering whether anyone is aware of a way to fix the node positions as it is possible with eg igraph (as explained eg here How to control the igraph plot layout with Fixed Positions? )

Thanks, Chris

Answer 1

I had the same problem myself and fixed it by setting the random seed. Apparently ggnet2 randomly distributes the nodes in line with the selected algorithm-mode. So to get reproducible that is to say identical plots just always use set.seed() before every plot.

eg:

set.seed(1)
ggnet2(net)

Answer 2

Ok, this is an old question but in case anyone looks for the answer...

Make a matrix of the coordinates:

l = as.matrix(data.frame(x = c(0.1,0.1, 0.5, 0.8), y = c(0.75, 0.25, 0.5, 0.5)))

Use

ggnet2(net, mode = l)