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IMPORT/EXPORT FORMAT

GraphML (.graphml)

Background & Context

Import & Export

Import["file.graphml"] imports the graphs stored in the specified file, given as a single Graph object or a list of graphs.
Export["file.graphml",expr] exports an adjacency matrix or edge information for one graph or for multiple graphs to the GraphML format.
Import["file.graphml",elem] imports the specified element from a GraphML file.
Import["file.graphml",{elem,sub_a,sub_b,…}] imports a subelement.
Import["file.graphml",{{elem₁,elem₂,…}}] imports multiple elements.
The import format can be specified with Import["file","GraphML"] or Import["file",{"GraphML",elem,…}].
Export["file.graphml",expr,elem] creates a GraphML file by treating expr as specifying element elem.
Export["file.graphml",{expr₁,expr₂,…},{{elem₁,elem₂,…}}] treats each expr_i as specifying the corresponding elem_i.
Export["file.graphml",expr,opt₁->val₁,…] exports expr with the specified option elements taken to have the specified values.
Export["file.graphml",{elem₁->expr₁,elem₂->expr₂,…},"Rules"] uses rules to specify the elements to be exported.
See the following reference pages for full general information:

Import Elements

General Import elements:
"Elements" list of elements and options available in this file "Summary" summary of the file "Rules" list of rules for all available elements
Data representation elements:
"AdjacencyMatrix" edge information, given as a list of matrices "EdgeAttributes" edge attributes, represented as a list of rules "EdgeLabels" list of strings representing edge labels "EdgeRules" connectivity data for all graphs, given as an array of rules "Graph" first graph stored in the file, given as a Graph object "Graphics" first graph stored in the file, rendered as a graph plot "GraphicsList" all graphs given as a list of graphics objects "GraphList" all graphs stored in the file, given as a list of Graph objects "VertexAttributes" vertex attributes, represented as a list of rules "VertexCount" number of vertices in each graph, given as a list of integers "VertexList" vertices, given as a list of strings
Import by default uses "Graph" for simple GraphML files and "GraphList" for multigraph GraphML files.
Element specifications for GraphML files containing multiple graphs:
"GraphNames" names of the graphs, given as a list of strings elem,"name" element elem for the graph specified by "name" elem,n data representation element elem for the n graph in this file elem,{n₁,n₂,…} element elem for graphs n₁, n₂, … elem,All element elem for all graphs, given as a list

Options

General Import options:
When importing from GraphML, all options supported by Graph can be given. Common settings include:
When importing "Graphics", all options supported by GraphPlot can be given. Common settings include:
When exporting from a Graph object, Wolfram Language graph attribute values are often exported as strings using Compress.

Examplesopen allclose all Basic Examples (7)

Import a graph from a GraphML file:

Export a Graph object to GraphML:

Export graph data to GraphML:

Import a graph from the exported file:

Show the Import elements available in an example file:

Import edge and vertex labels and the connectivity rules from this file:

Import as a Graph object:

Import the edge attributes in an example file:

Scope (1)

Import and plot a graph, displaying vertex labels:

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