write_graph
Writing the graph to a file in some format
write_graph is a general function for exporting graphs to foreign
file formats, however not many formats are implemented right now.
- Keywords
- graphs
Usage
write_graph(graph, file, format = c("edgelist", "pajek", "ncol", "lgl",
"graphml", "dimacs", "gml", "dot", "leda"), ...)Arguments
- graph
The graph to export.
- file
A connection or a string giving the file name to write the graph to.
- format
Character string giving the file format. Right now
pajek,graphml,dot,gml,edgelist,lgl,ncolanddimacsare implemented. As of igraph 0.4 this argument is case insensitive.- …
Other, format specific arguments, see below.
Value
A NULL, invisibly.
Edge list format
The edgelist format is a simple text file,
with one edge in a line, the two vertex ids separated by a space character.
The file is sorted by the first and the second column. This format has no
additional arguments.
References
Adai AT, Date SV, Wieland S, Marcotte EM. LGL: creating a map of protein function with an algorithm for visualizing very large biological networks. J Mol Biol. 2004 Jun 25;340(1):179-90.
See Also
Examples
# NOT RUN {
g <- make_ring(10)
# }
# NOT RUN {
write_graph(g, "/tmp/g.txt", "edgelist")
# }