String. Possible values are "edgelist"
and "gml"
.
If format = "edgelist"
, we just output the edgelist matrix contained in the PAFit_net
object as it is.
If format = "gml"
, here is the specification of the gml
file. There is a binary field directed
indicating the type of the network (0
: undirected, 1
: directed). There are three atrributes for an edge: source
, target
, and time
. There are three atrributes for a node: id
, isolated
(binary) and time
. The atrribute time
is NULL
if the attribute isolated
is 0
(since this is not an isolated node, we do not need to record its first apperance time). On the other hand, time
is the node's appearance time if attribute isolated
is 1
.