write_graph

0th

Percentile

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, ncol and dimacs are implemented. As of igraph 0.4 this argu
...
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

read_graph

Aliases
  • write.graph
  • write_graph
Examples
g <- make_ring(10)
write_graph(g, "/tmp/g.txt", "edgelist")
Documentation reproduced from package igraph, version 1.0.0, License: GPL (>= 2)

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