Use this function to read a topology .sif file (either space or tab-delimited) and get a matrix of network edges specifying the source and target name, the regulation effect (activation or inhibition) and the color (green or red) of each interaction.
get_edges_from_topology_file(topology.file)
| topology.file | string. The name of the .sif file (can be a full path name). |
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a matrix with as many rows as in the .sif topology file (each row is an edge) and 4 columns defining the source and target node name, the regulation (activation or inhibition) and the color (green or red) of the signed interaction.
topology.file = system.file("extdata", "example.sif", package = "emba", mustWork = TRUE) edges = get_edges_from_topology_file(topology.file)