Convenience function to run aPPR via rtweet
appr_rtweet(seeds, ...)
Arguments
seeds 
Screen names or user IDs of seed nodes
in the Twitter graph, as a character vector. 
... 
Arguments passed on to appr
graph An abstract_graph() object, such as those created by
rtweet_graph() and twittercache_graph() , and igraph::igraph()
object. This argument is required.
alpha Teleportation constant. The teleportation constant is the
probability of returning to a seed node at each node transition.
alpha must be a valid probabilty; that is, between zero and one.
Defaults to 0.15 . This is the inverse of the "dampening factor"
in the original PageRank paper, so alpha = 0.15 corresponds
to a dampening factor of 0.85 . Runtime is proportional to
1 / (epsilon * alpha) , so small alpha can result in long
runtimes.
epsilon Desired accuracy of approximation. epsilon must be
a valid probabilty; that is, between zero and one. Defaults to 1e6 .
Runtime is proportional to 1 / (epsilon * alpha) , so small epsilon
can result in long runtimes.
tau Regularization term. Additionally inflates the indegree
of each observation by this term by performing the degree
adjustment described in Algorithm 3 and Algorithm 4, which
are described in vignette("Mathematical details") . Defaults to
NULL , in which case tau is set to the average indegree of
the observed nodes. In general, setting it's reasonable to
set tau to the average indegree of the graph.
verbose Logical indicating whether to report on the algorithms
progress. Defaults to TRUE .
