the augmented network Y with additional nodes (all the original nodes from X must be present in the augmented network Y)
filename
the name of the file to save the network. Note that the file extension will automatically be added
layout
igraph layout function (default=layout.kamada.kawai)
taxnames
the taxon name of the nodes added to the original graph. By default, we select all nodes that are not in g1. Note that in order to display all the different taxa groups, you must use 'allgroup' as the taxnames argument
mode
type of file to create either: 'png', 'svg', or 'eps' (default='png')