- graph_file
A connection to a graph file. When provided as a path to a
file, it will read the file from disk. Files starting with http://
,
https://
, ftp://
, or ftps://
will be automatically downloaded.
- file_type
The type of file to be imported. Options are: gml
(GML),
sif
(SIF), edges
(a .edges file), and mtx
(MatrixMarket format). If
not supplied, the type of graph file will be inferred by its file
extension.
- edges_extra_attr_names
For edges
files, a vector of attribute names
beyond the from
and to
data columns can be provided in the order they
appear in the input data file.
- edges_extra_attr_coltypes
For edges
files, this is a string of
column types for any attribute columns provided for
edges_extra_attr_names
. This string representation is where each
character represents each of the extra columns of data and the mappings
are: c
-> character, i
-> integer, n
-> number, d
-> double, l
->
logical, D
-> date, T
-> date time, t
-> time, ?
-> guess, or
_/-
, which skips the column.
- graph_name
An optional string for labeling the graph object.
- attr_theme
The theme (i.e., collection of graph
, node
, and edge
global graph attributes) to use for this graph. The default theme is called
default
; there are hierarchical layout themes called lr
, tb
, rl
,
and bt
(these operate from left-to-right, top-to-bottom, right-to-left,
and bottom-to-top); and, for larger graphs, the fdp
theme provides a
force directed layout. If this is set to NULL
then no global graph
attributes will be applied to the graph upon creation.
- write_backups
An option to write incremental backups of changing graph
states to disk. If TRUE
, a subdirectory within the working directory will
be created and used to store RDS
files. The default value is FALSE
so
one has to opt in to use this functionality.
- display_msgs
An option to display messages primarily concerned with
changes in graph selections. By default, this is FALSE
.