How to set fix node positions with ggnet2

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 e.g. igraph (as explained e.g. here How to control the igraph plot layout with Fixed Positions?)

Thanks, Chris

score 2 · Answer 1 · answered Nov 19 '18 at 12:25

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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.

e.g.:

set.seed(1)
ggnet2(net)

answered Nov 19 '18 at 12:25

falseAzure

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Thanks @Fabian Sky, I actually used the same hack ... would thus still be helpful to truly fix the node positions – ChriiSchee Nov 23 '18 at 10:24

score 2 · Accepted Answer · edited Dec 29 '21 at 14:11

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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)

edited Dec 29 '21 at 14:11

Suraj Rao

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answered Dec 29 '21 at 14:04

Richard Heal

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How to set fix node positions with ggnet2

2 Answers2