brainGraph (version 3.1.0)

write_brainnet: Write files to be used for visualization with BrainNet Viewer

Description

Write the .node and .edge files necessary for visualization with the BrainNet Viewer software.

Usage

write_brainnet(g, vcolor = "none", vsize = "constant",
  edge.wt = NULL, file.prefix = "")

Arguments

g

The igraph graph object of interest

vcolor

Character string indicating how to color the vertices (default: 'none')

vsize

Character string indicating what size the vertices should be; can be any vertex-level attribute (default: 'constant')

edge.wt

Character string indicating the edge attribute to use to return a weighted adjacency matrix (default: NULL)

file.prefix

Character string for the basename of the .node and .edge files that are written

Author

Christopher G. Watson,

Details

For the .node file, there are 6 columns:

• Columns 1-3: Vertex x-, y-, and z-coordinates

• Column 4: Vertex color

• Column 5: Vertex size

• Column 6: Vertex label

The .edge file is the graph's associated adjacency matrix; a weighted adjacency matrix can be returned by using the edge.wt argument.

References

Xia, M. and Wang, J. and He, Y. (2013). BrainNet Viewer: a network visualization tool for human brain connectomics. PLoS One, 8(7), e68910. tools:::Rd_expr_doi("10.1371/journal.pone.0068910")

Examples

if (FALSE) {
write_brainnet(g, vcolor='community', vsize='degree', edge.wt='t.stat')
}