Weighted sum of ages of extant ties
# binary: edgecov.ages(x, attrname=NULL)a specification for the dyadic covariate: either one of the following, or the name of a network attribute containing one of the following:
with dimensions \(n \times n\)
for unipartite networks and \(b \times (n-b)\) for
bipartite networks; attrname, if given, is used to construct
the term name.
with the same size and bipartitedness as
LHS; attrname, if given, provides the name of the
quantitative edge attribute to use for covariate values (in
this case, missing edges in x are assigned a covariate value
of zero).
This term adds one statistic equaling sum, over all ties present in the network, of the amount of time elapsed since formation, multiplied by a dyadic covariate.
"Weights" can be negative.
Unlike edgecov.mean.age , this statistic is well-defined on
an empty network. However, if used as a target, it appears to
produce highly biased dissolution parameter estimates if the goal
is to get an intended average duration.
ergmTerm for index of model terms currently visible to the package.
ergm:::.formatTermKeywords("ergmTerm", "edgecov.ages", "subsection")